Opuntia pascoensis Britton & Rose
Publication The Cactaceae 1: 101, Plate XVII fig.1 (1919).
"79. Opuntia pascoensis sp. nov.
Stems erect and rigid, up to 3 dm. high; joints easily breaking apart, erect or ascending, terete or slightly flattened, 3 to 12 cm. long, 1.5 to 4 cm. broad, puberulent, hardly tuberculate but with faint upturned lunate depressions between the dark-blotched areoles; leaves minute; areoles somewhat elevated, filled with brown wool intermixed with longer white cobwebby hairs; spines 4 to 8 on young joints, more on older joints, acicular, yellow, 2 cm. long or less; glochids numerous, short, yellow, tardily developing; fruit globular, 1.5 cm. in diameter, naked below, spiny above. Doubtless of wide distribution, for the joints are easily detached and are distributed like burs, but so far only two collections have been reported.
Collected by Dr. and Mrs. J. N. Rose in central and southern Peru, in 1914, first from just below Matucana (No. 18653), and later at Pasco (No. 18812, type).
Plate XVII, figure 1, represents a joint of the type specimen above cited."
Type: Dr. et Mrs. J. N. Rose 18812, Pérou, province de Pasco, ville de Pasco, 1914, conservé au New York Botanical Garden (NY: holotype et isotype).
pascoensis: de la localité d'origine du type, Pasco au Pérou.
Fiche créée le 03/09/2005.
Synonyme de
Opuntia pubescens H.L.WendlandCommentaires
Publication originale:"79. Opuntia pascoensis sp. nov.
Stems erect and rigid, up to 3 dm. high; joints easily breaking apart, erect or ascending, terete or slightly flattened, 3 to 12 cm. long, 1.5 to 4 cm. broad, puberulent, hardly tuberculate but with faint upturned lunate depressions between the dark-blotched areoles; leaves minute; areoles somewhat elevated, filled with brown wool intermixed with longer white cobwebby hairs; spines 4 to 8 on young joints, more on older joints, acicular, yellow, 2 cm. long or less; glochids numerous, short, yellow, tardily developing; fruit globular, 1.5 cm. in diameter, naked below, spiny above. Doubtless of wide distribution, for the joints are easily detached and are distributed like burs, but so far only two collections have been reported.
Collected by Dr. and Mrs. J. N. Rose in central and southern Peru, in 1914, first from just below Matucana (No. 18653), and later at Pasco (No. 18812, type).
Plate XVII, figure 1, represents a joint of the type specimen above cited."
Type: Dr. et Mrs. J. N. Rose 18812, Pérou, province de Pasco, ville de Pasco, 1914, conservé au New York Botanical Garden (NY: holotype et isotype).
Étymologie
Opuntia: origine incertaine: voir la fiche de genre.pascoensis: de la localité d'origine du type, Pasco au Pérou.
Numéros de collecte
Vous pouvez chercher les numéros de collecte pour cette espèce dans :- la base de Ralph Martin : Opuntia pascoensis
- la base de Christophe Ludwig : Opuntia pascoensis
Forum
Vous pouvez faire une recherche sur le forum.Auteur
philippe (contacter l'auteur ou écrire aux admins de l'encyclopédie)Fiche créée le 03/09/2005.
Fiches de botanistes :
Britton, Nathaniel Lord
Rose, Joseph Nelson
Fiche du genre :
Opuntia (Linné) Miller 1754
Synonymes :
Aucune fiche.
Espèces du même genre :
Opuntia aciculata Griffiths
Opuntia aequatorialis Britton & Rose
Opuntia ammophila Small 1919
Opuntia austrina Small 1933
Opuntia bakeri Madsen
Opuntia basilaris v. basilaris Engelmann & Bigelow 1857
Opuntia basilaris v. brachyclada (Griffiths) Munz 1935
Opuntia basilaris v. humistrata (Griffiths) W.T.Marshall 1941
Opuntia chaffeyi Britton & Rose
Opuntia ficus-indica (L.) Miller 1768
Opuntia humifusa (Rafinesque) Rafinesque
Opuntia leucotricha de Candolle
Opuntia microdasys (Lehmann) Pfeiffer
Opuntia monacantha (Willdenow) Haworth
Opuntia pubescens H.L.Wendland
Opuntia pycnantha Engelmann ex J.M.Coulter 1896
Opuntia quimilo K.Schumann
Opuntia quitensis F.A.C.Weber
Opuntia rastrera F.A.C.Weber
Opuntia robusta H.L.Wendland
Opuntia rufida
Opuntia salmiana J.Parmentier ex Pfeiffer 1837
Opuntia tenuiflora Small 1933
Opuntia tuna (Linné) Miller
Opuntia turbinata Small 1933
Opuntia undulata Griffiths