Anomobryum apiculatum (Schwägr.) D.Bell & Holyoak

Melamed, Dror & Segarra-Moragues, José Gabriel, 2024, New records of Anomobryum apiculatum (Schwägr.) D. Bell & Holyoak (Bryaceae) from two separate populations in the Mediterranean region, Cryptogamie, Bryologie 20 (1), pp. 1-8 : 3

Anomobryum apiculatum (Schwägr.) D.Bell & Holyoak

Journal of Bryology 42: 5 ( Hodgetts et al. 2020). — Bryum apiculatum Schwägr. , Species Muscorum Frondosorum, Supplementum Primum 2: 102 ( Schwägrichen 1816).

Bryum nitens Hook. ex Harv., Icones Plantarum 1: pl. 19, fig. 6 ( Hooker 1836).

Bryum cruegeri Hampe , Synopsis Muscorum Frondosorum Omnium Hucusque Cognitorum 1: 300 ( Müller 1848).

MATERIAL STUDIED. — Israel. Tel-Aviv, Dolchin st., 19 m, 32°7’4.88”N, 34°47’32.09”E, in a drainage opening in a garden wall made of granulite, constant dampness caused probably by a gutter drain, 14.II.2022, D. Melamed ( HUJMOS[905592] , VALBriof.[13443] ).

Spain. Valencia, Tropical greenhouse of the University of Valencia Botanical Garden , 18 m, 39°28’37.41”N, 0°23’12.83”W, shaded crevices of pavement, 10.XI.2022, J.G. Segarra-Moragues ( VALBriof.[13444] ).

DESCRIPTION

A detailed description based on the study of specimens from the newly reported populations of A. apiculatum is presented below. The sizes and character states of the corresponding quantitative and qualitative respective traits are based on the combination of measurements from both populations to account for its variability except where otherwise specified. In Table 1 , the variation in all quantitative traits measured and morphologically informative qualitative traits is specified separately for Israeli and Spanish populations. For quantitative traits, average and range values are given in parentheses. Plants (3.5-) 6.2 (-7.8) mm long, loosely caespitose to caespitose, green to yellowish green, green or reddish brown to brown below; stems (80.5-) 173.6 (-223.3) µm wide, simple or branching by innovations, red to reddish brown, green in youngest parts, without tomentum; stems and bases of branches usually buried becoming radiculose; stem apices deciduous, becoming propaguliferous; rhizoids light brown or reddish brown, papillose; rhizoidal tubers abundant, on short and long rhizoids, in clusters at stem base, brown to dark brown, irregularly spherical, elliptical to pyriform, (166.5-) 233.0 (-359.2) ×(129.1-) 169.7 (-219.5) µm, with cells strongly protuberant; axillary tubers clustered in leaf axils, brown, spherical to pyriform, (122.4-) 180.6 (-218.5)×(105-) 141.2 (-201.9) µm, with cells strongly protuberant; axillary bulbils absent; leaves glossy, (0.8-) 1.0 (-1.2)×(0.3-) 0.4 (-0.5) mm, widest below midleaf, leaf-margins entire throughout, plane, not bordered; in Spanish plants distant below, crowded above, plane, erect-spreading when dry, erect-spreading to wide spreading when wet, oblong-lanceolate to lanceolate; in Israeli plants densely imbricate, concave, not differing in dry plants, elliptical to oblong-lanceolate. Nerve weak above, brown to reddish-brown (except on young leaves), ending at apex or slightly percurrent, (31.5-) 44.8 (-61.8) µm wide at base, tapering to apex; basal laminal cells rectangular to quadrate, green to reddish, (22.1-) 41.2 (-61.4) ×(16.3-) 21.5 (-27.7) µm; midleaf laminal cells shortly rectangular,rhomboidal to polygonal, (64.1-) 86.1 (-101.7)× (11.5-) 14.8 (-19.0)µm; upper laminal cells oblong-rhomboidal to long-rhomboidal, (46.8-) 70.3 (-91.0)× (11.0-) 13.7 (-20.0) µm; marginal laminal cells rhomboidal in Israeli plants to long rhomboidal in Spanish plants, becoming progressively narrower from nerve to margin; marginal cells, rhomboidal to long rhomboidal, (58.2-) 93.9 (-128.1)× (5.4-) 9.8 (-12.5) µm; apparently dioicous (antheridia lacking) in Israeli plants, sterile in Spain. Sporophytes not seen.