Calendula suffruticosa subsp. hosmarensis A.C. Gonç. & P. Silveira, 2023
|
publication ID |
https://doi.org/ 10.11646/phytotaxa.605.1.1 |
|
persistent identifier |
https://treatment.plazi.org/id/E82AFC0A-157F-CA5E-66ED-FE2481CDF921 |
|
treatment provided by |
Plazi |
|
scientific name |
Calendula suffruticosa subsp. hosmarensis A.C. Gonç. & P. Silveira |
| status |
subsp. nov. |
11g. Calendula suffruticosa subsp. hosmarensis A.C. Gonç. & P. Silveira , subsp . nov. Type:— MOROCCO. Tetouan :
Jbel Gorghiz (Beni Hosmar) [35°28’50” N, 5°22’06” W], 6 June 2012, P. Silveira & A. C. R. S. Gonçalves 3261 (holotype GoogleMaps
RAB!; isotypes AVE!, MARK!).
Diagnosis:— Calendula suffruticosa subsp. hosmarensis differs from C. suffruticosa subsp. suffruticosa by the white-arachnoid indumentum, instead of predominantly ± glabrous to glandulose. It differs from subsp. dersana by having longer rostrate achenes (7) 12.3–16.1 (17) mm [instead of (5) 6–10.2 (13.5) mm] and by having middle achenes of diverse types, not exclusively cymbiform as in subsp. dersana .
Description:––Perennial herbs. Stems (8) 15–42 (55) cm long, prostrate to decumbent, ± densely white – arachnoid pubescent. Basal leaves (2.2) 3.6–5 (6.5) × (0.6) 1–1.3 (1.5) cm, 0.2–0.3 (0.5) mm thick, oblanceolate to spatulate, apex obtuse, or sometimes ± acute, margins sub - entire to sinuate-dentate, white-arachnoid pubescent. Capitula solitary, (2.3) 2.5–3.4 (3.8) cm diameter. Outer achenes rostrate (7) 12.3–16.1 (17) × (1.2) 1.3–1.5 (2) mm; middle achenes bialate (9) 10.7–13.2 (15.8) × (4.7) 6.7–7.7 (8.3) mm, with a rostrum (3.3) 4.4–7.3 (9.2); trialate (6) 8–15 (17) × (1.3) 1.5–1.9 (2.3) mm; or cymbiform (6.3) 6.7–8.8 (11) × 5.2–6.8 (7.3) mm; inner achenes vermiculate-exalate (3.3) 3.5–4.3 (4.5) × (1.3) 1.5–1.7 (1.8) mm, circular. Figure 17 View FIGURE 17 .
Habitat and distribution:—Limestone mountains, at elevations of ± 430–1070 m, in pre-humid Mediterranean bio-climate. This taxon is endemic to Morocco with a restricted distribution in the southern Tetouan Mountains (Beni Hosmar).
Conservation status:— Data Deficient (DD) . This taxon is rare and local with a small-restricted range; only two populations are known, and few herbarium specimens exist (from the same locality). The number of mature individuals is not known and can not be estimated based on the limited field work made by the team. The AOO is 8 km 2, which would qualify for CR, but we do not have adequate information to assess its extinction risk based on distribution and/or population numbers, and we do not know the if there has been a decline. Therefore, we propose its conservation status as DD.
Chromosome number:— 2n = 32.
Genome size:—3.10 ± 0.10 pg.
Eponymy:—For Beni Hosmar in Morocco where it occurs.
Additional collections:— MOROCCO. Beni Hosmar, Jbel Hosmar, 1005, [35º29’12’’N 5º22’12’’W] J GoogleMaps . Calvo JC 3441 ( MA!); Beni Hosmar, April 1871, [35°28’ N, 5°20’ W] Hooker s.n. ( K!, G!); Tetouan, Beni Hosmar, C GoogleMaps . J GoogleMaps . Pitard 1030 ( G!); Beni Hosmar , May 1928, J . Mas y Guindal s.n. ( MA!); Beni Hosmar Gorges, 1 June 1930, [35°28’ N, 5°20’ W] J GoogleMaps . Mas y Guindal s.n. ( MA!); Beni Hosmar, Jbel Gorges (Beni Hosmar), 30 May 1930, [35°28’ N, 5°20’ W] P GoogleMaps . Font Quer s.n. ( BC); Beni Hosmar, 915 m, 13 April 1939, [35°28’ N, 5°20’ W] P GoogleMaps . H GoogleMaps . Davis 441 ( K, E); Tetouan, Beni Hosmar , Jbel Ajnane, M . Dittrich 1245 ( G!); Beni Hosmar above Tetouan, 430 m, 12 May 1972, [35°28’ N, 5°20’ W] J GoogleMaps . C GoogleMaps .M. Alexander 124 ( BM!, E!) .
| P |
Museum National d' Histoire Naturelle, Paris (MNHN) - Vascular Plants |
| A |
Harvard University - Arnold Arboretum |
| C |
University of Copenhagen |
| R |
Departamento de Geologia, Universidad de Chile |
| S |
Department of Botany, Swedish Museum of Natural History |
| J |
University of the Witwatersrand |
| MA |
Real Jardín Botánico |
| K |
Royal Botanic Gardens |
| G |
Conservatoire et Jardin botaniques de la Ville de Genève |
| BC |
Institut Botànic de Barcelona |
| H |
University of Helsinki |
| E |
Royal Botanic Garden Edinburgh |
| M |
Botanische Staatssammlung München |
| BM |
Bristol Museum |
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.
|
Kingdom |
|
|
Phylum |
|
|
Class |
|
|
Order |
|
|
Family |
|
|
Genus |