Neomammillaria longicoma Britton & Rose 1923
Publication The Cactaceae (Britton & Rose) 4: 146 (-147, fig. 162, 165) (24 décembre 1923).
Type : E. Palmer s.n., Mexique, près de San Luis Potosí, 1905, conservé au U. S. National Herbarium de la Smithsonian Institution (US 1821099: holotype)
"117. Neomammillaria longicoma sp. nov.
Cespitose, often forming broad clumps; individual specimens 3 to 5 cm. in diameter; tubercles conic, 4 to 5 mm. long, dark green, obtuse, bearing long white hairs in their axils; radial spines 25 or more, weak and hair-like, more or less interlocking; central spines 4, 10 to 12 mm. long, brown above, a little paler below, 1 or 2 hooked; flowers from axils of upper tubercles; outer perianth-segments pinkish, darker along the center ; inner perianth-segments lanceolate, acute, nearly white or sometimes tinged with rose; stamens and style much shorter than the inner perianth-segments ; stigma-lobes 3, cream-colored.
The plant is common about San Luis Potosí, Mexico, where it was collected by Dr. E. Palmer in 1905 (type) and by Mrs. Irene Vera in 1912. We have had it in cultivation since 1905. It differs considerably from Neomammillaria kunzeana from the same region, in its hair-like radial spines. It is perhaps nearest M. bocasana but that species has single central spines.
Illustration: Ann. Rep. Smiths. Inst. 1908: pi. 4, f. 4, as Mammillaria bocasana.
Figure 162 is from a photograph of a plant (type) collected by Dr. E. Palmer near San Luis Potosí in 1905 and figure 165 shows a cluster of plants from the same colony."
longicoma: du latin longus, long, et coma, chevelure: à longue chevelure, en référence aux épines.
Fiche créée le 18/03/2009.
Type : E. Palmer s.n., Mexique, près de San Luis Potosí, 1905, conservé au U. S. National Herbarium de la Smithsonian Institution (US 1821099: holotype)
Synonyme de
Mammillaria bocasana Poselger 1853Commentaires
Description originale:"117. Neomammillaria longicoma sp. nov.
Cespitose, often forming broad clumps; individual specimens 3 to 5 cm. in diameter; tubercles conic, 4 to 5 mm. long, dark green, obtuse, bearing long white hairs in their axils; radial spines 25 or more, weak and hair-like, more or less interlocking; central spines 4, 10 to 12 mm. long, brown above, a little paler below, 1 or 2 hooked; flowers from axils of upper tubercles; outer perianth-segments pinkish, darker along the center ; inner perianth-segments lanceolate, acute, nearly white or sometimes tinged with rose; stamens and style much shorter than the inner perianth-segments ; stigma-lobes 3, cream-colored.
The plant is common about San Luis Potosí, Mexico, where it was collected by Dr. E. Palmer in 1905 (type) and by Mrs. Irene Vera in 1912. We have had it in cultivation since 1905. It differs considerably from Neomammillaria kunzeana from the same region, in its hair-like radial spines. It is perhaps nearest M. bocasana but that species has single central spines.
Illustration: Ann. Rep. Smiths. Inst. 1908: pi. 4, f. 4, as Mammillaria bocasana.
Figure 162 is from a photograph of a plant (type) collected by Dr. E. Palmer near San Luis Potosí in 1905 and figure 165 shows a cluster of plants from the same colony."
Étymologie
Neomammillaria: du grec neos, nouveau, car le nom de genre Mammillaria créé par Haworth en 1812 avait été employé par Stackhouse en 1809 pour un genre d'algues, et Britton & Rose étaient opposés à la conservation du nom d'Haworth opérée au congrès international de botanique de Vienne en 1905 en contradiction avec la règle stricte de l'antériorité.longicoma: du latin longus, long, et coma, chevelure: à longue chevelure, en référence aux épines.
Numéros de collecte
Vous pouvez chercher les numéros de collecte pour cette espèce dans :- la base de Ralph Martin : Neomammillaria longicoma
- la base de Christophe Ludwig : Neomammillaria longicoma
Forum
Vous pouvez faire une recherche sur le forum.Auteur
philippe (contacter)Fiche créée le 18/03/2009.
Fiches de botanistes :
Britton, Nathaniel Lord
Fiche du genre :
Aucune.
Synonymes :
Aucune fiche.
Espèces du même genre :
Aucune.