identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
6C7E7022FFA4E870320EFA52FB46BE82.text	6C7E7022FFA4E870320EFA52FB46BE82.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Weissia controversa OK 1853	<div><p>Weissia controversa in the Russian Far East</p><p>This is the most widespread species of the genus, distributed nearly worldwide. In Russia, it is frequent in its European part, except its northern regions, known from the Caucasus, southern Siberia, and southern Far East in the Asian part of the country. Bardunov &amp; Cherdantseva (1982) characterize it as a more or less common species in southern Primorje, often found with sporophytes. It was also recorded from Kamchatka, Amurskaya Province, Khabarovsk Territory, Sakhalin, and Kuril Islands (Cherdantseva et al., 2018). Weissia controversa is recognized by combination of widely and tightly incurved margins in upper halves of leaves and peristomate capsules on long setae. Its peristome teeth are characterized as well developed, linear-lanceolate, papillose, or sometimes rudimentary (if W. wimmeriana (Sendtn.) Bruch, Schimp. &amp; W. Gümbel is treated as a variety of W. controversa). Its spore size is described more or less uniformly in Floras of various regions: 16–20 µm (Smith, 2004), 18–20 µm (Guerra et al., 2006), 17–20 µm (Savicz-Lyubitskaya &amp; Smirnova, 1970); 15–20 µm (Saito, 1975), 14–22 µm (Crum &amp; Anderson, 1981). In the course of present study, three specimens from Sakhalin and Kuril Islands identified as W. controversa took our attention. The molecular phylogenetic analysis resolved them in a separate, highly supported clade. Weissia controversa, as well as most other widespread species of Weissia, was found to be polyphyletic by Werner et al. (2005) and in our analysis, based on sequences of ITS1–2 region. The main morphological characters of plants from Sakhalin and Kuril Islands, such as leaves with incurved upper margins and capsules on long setae with lanceolate, entire peristome teeth are in agreement with W. controversa; however, some differences are also observed: their leaf margins are narrower incurved, and its spores are larger, (19–)21–25 µm. We consider that these differences, as well as a separate position in the molecular phylogenetic tree allow us to describe these plants as a variety of W. controversa .</p><p>Eperistomate Weissia in the Russian Far East</p><p>Weissia edentula has been first recorded in Russia from Bureinsky Nature Reserve in Khabarovsk Territory (Ignatov et al., 2000). Later specimens of Weissia with long setae and eperistomate capsules were collected in other localities in the southern Russian Far East, from Zeya Reserve in Amurskaya Province to Primorsky Territory and Kuril Islands, the northernmost one in Kamchatka Peninsula; they were also identified as W. edentula . This species was described from Madras, India and is also known from China, Japan, Vietnam, Thailand, the Philippines, Papua New Guinea, Africa, and Australia (Li et al., 2001; Brinda &amp; Atwood, 2024). Its presence in SE Russia did not look impossible, likely representing populations on the northern boundary of its range. However, in the course of preparation the treatment of Weissia for the ongoing volume of the Moss Flora of Russia, we found that the plants from Russia called W. edentula do not fit comfortably the description of this species provided by Saito (1975) and Li et al. (2001) and especially its illustrations in Saito (2005) and Gao (1996). In these illustrations, leaves of W. edentula are shown as linear-lanceolate, narrowly acuminate, with more or less strongly involute upper margins, whereas plants from Russia have shorter and wider leaves, with lower length/width ratio, with much narrower and weaker incurved margins, and obtuse apices (Fig. 4). In Japan, there are two other eperistomate species of Weissia, i.e. W. atrocaulis K. Saito and W. newcomeri (E.B. Bartram) K. Saito, both having oblong leaves with obtuse apices (Saito, 1975; Noguchi &amp; Iwatzuki, 1988). However, W. atrocaulis has totally plane leaf margins, percurrent costa, and longer capsules; furthermore, it is described as a robust plant with black stems to 3 cm long. The plants from the Russian Far East lack this combination of characters. Weissia atrocaulis is currently treated in Trichostomum where it was transferred by R.H. Zander. At the same time, the plants in question from the Russian Far East (Fig. 4) are very similar to W. newcomeri, as it is illustrated and described by Saito (1975). They have oblong leaves with length/ width ratio 4–6:1, with slightly and narrowly incurved margins, obtuse apices, and shortly excurrent costa. All other morphological characters of plants from Russia fit well the description of this species. So we only with a little hesitation refer the plants from the Russian Far East not to W. edentula but to W. newcomeri, keeping in mind that it should be tested with molecular methods, if the specimens of W. newcomeri from Japan and W. edentula from East Asia will be available.</p></div>	https://treatment.plazi.org/id/6C7E7022FFA4E870320EFA52FB46BE82	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Ignatova, E. A.;Fedorova, A. V.;Kuznetsova, O. I.;Ignatov, M. S.	Ignatova, E. A., Fedorova, A. V., Kuznetsova, O. I., Ignatov, M. S. (2024): Notes on the genus weissia in russia focused mainly on the species from asian russia. Arctoa 33 (1): 50-60, DOI: 10.15298/arctoa.33.07, URL: https://doi.org/10.15298/arctoa.33.07
6C7E7022FFA2E872320BFC9BFB25BA24.text	6C7E7022FFA2E872320BFC9BFB25BA24.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Weissia planifolia Dixon, Rev. Bryol.	<div><p>Weissia planifolia Dixon, Rev. Bryol., n. s. 1: 179. f. 1. 1928. — Trichostomum planifolium (Dixon) R.H. Zander, Bull. Buffalo Soc. Nat. Sci. 32: 92. 1993. Fig. 2.</p><p>Plants in small, dense or lax patches, yellowish-green. Stems 1–2(–4) mm long. Leaves crispate when dry, erect-spreading to patent when moist, 1.1–2.5×0.25–0.45 (–0.5) mm, with length:width ratio 4–8:1, becoming longer distally, lanceolate to oblong-lanceolate, canaliculate distally, margins almost plane in midleaf, narrowly incurved in the upper third or near apex, apices slightly cucullate, base slightly widened; costa strong, 50–70 µm wide at base, excurrent into short mucro, in transverse section with one row of guide cells, ventral band of 1(2) layers of substereids, dorsal band of 2–4 layers of stereids, ventral epidermis differentiated, dorsal epidermis not or slightly differentiated, cells on dorsal surface of costa linear or elongate rectangular, smooth or with scarce papillae in middle part; cells in the middle and upper part of lamina quadrate, thin-walled, 9–12×9–12 µm, with 3–4 papillae per cell, papillae low, simple and bifid, obscuring cell walls; basal laminal cells rectangular, smooth, yellowish or hyaline, with moderately thickened walls, 30–80×11–15 µm. Autoicous. Perichaetial leaves similar to upper stem leaves. Setae 5–9 mm, pale yellowish. Urns 0.7–1.1 mm long, light-brownish, cylindrical, not or weakly narrowed to the mouth. Exothecial cells thin-walled. Annuli differentiated, persistent, opercula falling off, low conic, with long, narrow, straight or oblique beaks ca. 0.5 mm long. Peristome well developed, teeth erect or erect-spreading when dry, subobtuse at tips, 50–90 µm long, reddish-brown or brownish, densely papillose. Spores 16–20 µm.</p><p>Distribution and ecology. This is the most frequent species of Weissia in the southern Russian Far East (Amur Province, south of Khabarovsk and Primorsky Territories, and South Kuril Islands). In grows on soil banks along roads, in dry Quercus mongolica forests on slopes, in ravines, at edges of arable fields, and in flood-valley stands (willow, poplar, and alder).</p><p>H I J</p><p>Differentiation. Weissia planifolia is recognized by having leaves with almost plane or weakly and narrowly incurved margins in distal part; long and thin setae; and well developed, erect or slightly spreading, reddish-brown peristome teeth. In some specimens, costa is weakly papillose on dorsal surface in mid-leaf. This character is considered as diagnostic for the Japanese species W. deciduifolia K. Saito ( Trichostomum deciduifolium (K. Saito) R.H. Zander); however, its costa is much denser papillose, and its leaves are strongly deciduous. The distinctions of W. planifolia from W. controversa var. controversa include weakly and narrowly vs. tightly and widely incurved leaf margins, and from W. controversa var. sachalinensis in weaker incurved leaf margins and small- er spores (16–20 µm vs. (19–)21–25 µm).</p><p>Weissia controversa var. sachalinensis Ignatova &amp;</p><p>Ignatov, var. nova . Fig. 3.</p><p>Diagnosis. The new variety differs from the type variety by narrower incurved upper leaf margins and larger spores, (19–)21–25 µm vs. 16–20 µm.</p><p>Type: Russia, Sakhalin Island, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=143.36667&amp;materialsCitation.latitude=46.35" title="Search Plazi for locations around (long 143.36667/lat 46.35)">Korsakovo District</a>, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=143.36667&amp;materialsCitation.latitude=46.35" title="Search Plazi for locations around (long 143.36667/lat 46.35)">Tonino-Anivsky Peninsula</a>, outskirts of <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=143.36667&amp;materialsCitation.latitude=46.35" title="Search Plazi for locations around (long 143.36667/lat 46.35)">Novikovo Settlement</a>, 46°21’N, 143°22’E, 10 m alt. N-faced rock outcrops along a stream. 15.IX.2009. Coll O. Yu. Pisarenko op03797. Holotype MHA9102705, isotype NSK2003797.</p><p>Etymology. The name of variety points its distribution in Sakhalin Province of Russia (Sakhalin and Kuril Islands).</p><p>Plants in small, more or less dense patches, yellowish-green. Stems 1–2(–4) mm long. Leaves crisped when dry, erect-spreading when wet, 1.4–2.2× 0.25–0.35 mm, becoming larger distally, lanceolate to linear-lanceolate, with margins narrowly but strongly incurved in distal halves, slightly cucullate distally, with slightly widened bases; costa 35–50 µm wide at base, excurrent into a short mucro, smooth dorsally, ventral stereid band 1–2- layered, dorsal stereid band 2–3-layered, dorsal epidermis not differentiated; upper and median laminal cells quadrate and shortly transverse rectangular, moderately thick-walled, 6–9×9–11 µm, papillae 3–4(–5) per cell,</p><p>I</p><p>G</p><p>100 µm</p><p>L M</p><p>low, simple and bifid, obscuring cell walls; basal laminal cells rectangular, smooth, yellowish or hyaline, with moderately thickened walls, 25–60×8–11 µm. Autoicous. Perichaetial leaves similar to upper stem leaves. Setae 3–4 mm, yellowish to light brownish when mature. Urns 0.7–1.2 mm long, light-brown, cylindrical, weakly narrowed to the mouth. Exothecial cells thin-walled. Annuli differentiated, opercula falling off, low conic and with narrow, straight or oblique beaks ca. 0.5 mm long. Peristome well developed, peristome teeth erect when dry, lanceolate, obtuse, 90–100 µm long, reddish-brown, densely papillose. Spores (19–)21–25 µm.</p><p>Distribution and ecology. The variety is known only from Sakhalin, Shikotan, and Kunashir Islands (see specimen data in Appendix 1). It was collected on rock outcrops along a stream, on small rocks under high grasses and in rock crevices at sea coast. The type variety was also reported to grow occasionally on rock substrates, but more frequently it grows on various soil banks.</p><p>Differentiation. The distinctions from the type variety are given in the diagnosis. Another Far Eastern species with narrowly incurved leaf margins and well developed peristome is W. planifolia; it differs by having leaves with wider, subobtuse apices, weaker incurved leaf margins, longer setae (5–9 mm vs. 3–4 mm), and small- er spores (16–20 µm vs. (19–)21–25 µm).</p></div>	https://treatment.plazi.org/id/6C7E7022FFA2E872320BFC9BFB25BA24	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Ignatova, E. A.;Fedorova, A. V.;Kuznetsova, O. I.;Ignatov, M. S.	Ignatova, E. A., Fedorova, A. V., Kuznetsova, O. I., Ignatov, M. S. (2024): Notes on the genus weissia in russia focused mainly on the species from asian russia. Arctoa 33 (1): 50-60, DOI: 10.15298/arctoa.33.07, URL: https://doi.org/10.15298/arctoa.33.07
6C7E7022FFA0E87C320EF9EDFD37BD02.text	6C7E7022FFA0E87C320EF9EDFD37BD02.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Weissia newcomeri (E. B. Bartram) K. Saito, J. Hattori Bot. Lab.	<div><p>Weissia newcomeri (E.B. Bartram) K. Saito, J. Hattori Bot. Lab. 39: 423. 1975. — Bryologist 50: 162. f. f– h. 1947. Fig. 4.</p><p>Plants in small, more or less dense patches, green or yellowish-green. Stems 1–5(–10) mm long. Leaves contorted and incurved or crisped when dry, erect-spreading to spreading when wet, 1.4–2.5× 0.3–0.45 mm, lanceolate or oblong, with length/width ratio 4–6(8):1, with upper leaf margins narrowly and weakly incurved, slightly cucullate at apices, lower leaves with hardly widened bases, upper leaves with slightly widened bases; costa 40–60 (–90) µm wide at base, excurrent into short, smooth mucro, smooth dorsally, ventral stereid band 1–2-layered, dorsal stereid band 2–3-layered, dorsal epidermis not or slightly differentiated; upper and mid-leaf cells quadrate and rounded-hexagonal, thin- or moderately thick-walled, 6–9×7–11 µm, papillae 3–4(–5) per cell, low, simple and bifid; basal leaf cells rectangular, smooth, yellowish, with moderately thickened walls, 20–50×8–12 µm. Autoicous. Perichaetial leaves similar to upper stem leaves, with slightly wider bases. Setae (4–) 5–6 mm, yellowish, later becoming light-brownish. Urns ca. 1 mm long, cylindrical, weakly narrowed to mouth. Exothecial cells thin-walled. Annuli differentiated, opercula falling off, low conic and with narrow, straight or oblique beaks ca. 0.5 mm long. Peristome absent. Spores (15–)18–21 µm.</p><p>Distribution and ecology. Until recently, this species was considered to be an endemic of Japan, were it is distributed in Honshu, Kyushu, Sikoku, and Okinawa. In Russia it occurs in the southern Far East (Amurskaya Province, Khabarovsk and Primorsky Territories), and in one locality in Kamchatka (Klyuchevskie volcanoes). It grows in forests on soil banks on slopes, along roads and streams, and on rocks and cliffs.</p><p>Differentiation. Leaves with obtuse apices and weakly, narrowly incurved upper margins make this species similar to W. planifolia, but the latter species is readily distinguished by having a well developed peristome. Oth- er eperistomate species of Weissia with long setae occurring in Russia are W. condensa (Voit) Lindb. and W. brachycarpa (Nees &amp; Hornsch.) Jur. The former species has leaves with stronger involute margins and stronger costae; its distribution in Russia is restricted to the European part. Weissia brachycarpa also has stronger incurved leaf margins, shorter setae, and urns clearly narrowed to the mouths.</p><p>KEY TO IDENTIFICATION OF WEISSIA SPECIES OCCURRING IN RUSSIA 1</p><p>1. Upper and median leaf cells bulging on both surfaces, with 1–2 high, strongly branched papillae per cell ........................................................... W. armata</p><p>— Upper and median leaf cells not bulging or slightly bulging only on ventral surface, with 3–5 low, simple and bifid papillae per cell ............................... 2</p><p>2. Setae shorter than urns, capsules immersed into perichaetial leaves...................................................... 3</p><p>— Setae as long as urns or longer, capsules emergent or exserted above perichaetial leaves ................... 6</p><p>3. Annuli not differentiated ...................................... 4</p><p>— Annuli differentiated, consisting of few rows of small cells; opercula persistent or falling off ................. 5</p><p>1 – The key includes W. wilsonii and W. angustifolia based on their circumscriptions of Callaghan et al. (2019). Few specimens from Russia studied by us appeared to be not genetically similar to so-called specimens from outside Russia. However, our data are so far too few for certain conclusion, hence we call for attention of collectors from Russia to plants with such features.</p><p>4. Capsules round, obtuse, abruptly narrowed into short beaks .................................................. W. longifolia</p><p>— Capsules short ellipsoidal, gradually narrowed into low conic, strait or oblique beaks ......... W. wilsonii</p><p>5. Perichaetial leaves with almost flat or weakly incurved upper margins; opercula often fall off in nature ........................................................... W. levieri</p><p>— Perichaetial leaves with strongly involute upper margins; opercula usually do not fall off in nature ....... ........................................................ W. angustifolia</p><p>6(2). Capsules on long setae; opercula fall off easily; peristome present, well developed or short .................. 7</p><p>— Capsules on short or long setae; opercula fall off easily or can be removed only with special effort; peristome absent ......................................................... 10</p><p>7. Anteridia naked, in leaf axils close to archegonia; peristome usually short, occasionally strongly reduced ............................................... W. wimmeriana</p><p>— Perigonia bud-like, on stems below perichaetia; peristome well developed ............................................. 8</p><p>8. Upper leaf margins almost flat or weakly incurved; peristome teeth reddish-brown, erect to slightly reclined when dry ................................. W. planifolia</p><p>— Upper leaf margins tightly incurved; peristome teeth pale reddish or yellowish, erect when dry ............ 9</p><p>9. Upper leaf margins widely incurved; spores 15–20 µm; widespread .. W. controversa var. controversa</p><p>— Upper leaf margins narrowly incurved; spores (19–) 21–25 µm; Russian Far East ................................... ........................... W. controversa var. sachalinensis</p><p>10(6). Setae 1–3 mm long; capsules cleistocarpous or with differentiated annulus but with opercula persistent in nature ....................................................... 11</p><p>— Setae 3–8 mm long; capsules stegocarpous ........ 14</p><p>11. Setae as long as urn; capsules emergent ................. ............................................................. W. rostellata</p><p>— Setae 2–3 times longer than urns; capsules exserted 12</p><p>12. Perichaetial leaves with tightly involute upper margins; spores 16–21 µm .......................... W. exserta</p><p>— Perichaetial leaves with weakly incurved upper margins; spores 20–25 µm ....................................... 13</p><p>13. Setae straight; opercula falling off, but epiphragm remaining at mouth, so spores are released through breaks of capsule walls ...................... W. squarrosa</p><p>— Setae arcuate when wet; opercula differentiated but persistent, not falling off in mature capsules .......... ................ W. cf. exserta (cf. Fedosov et al., 2023.)</p><p>14(10). Leaf margins plane or weakly incurved in distal portion; urns hardy narrowed to the mouths .......... .......................................................... W. newcomeri</p><p>— Upper leaf margins widely and tightly involute; urns narrowed to the mouths ....................................... 15</p><p>15. Spores 14–16(–20) µm; costae 60–80(–100) µm wide ............................................................ W. condensa</p><p>— Spores 16–24 µm; costae 30–50 µm wide .............. ........................................................ W. brachycarpa</p></div>	https://treatment.plazi.org/id/6C7E7022FFA0E87C320EF9EDFD37BD02	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Ignatova, E. A.;Fedorova, A. V.;Kuznetsova, O. I.;Ignatov, M. S.	Ignatova, E. A., Fedorova, A. V., Kuznetsova, O. I., Ignatov, M. S. (2024): Notes on the genus weissia in russia focused mainly on the species from asian russia. Arctoa 33 (1): 50-60, DOI: 10.15298/arctoa.33.07, URL: https://doi.org/10.15298/arctoa.33.07
