Opuntia depauperata Britton & Rose
Publication The Cactaceae 1: 216 (-217, 101), fig. 279-280 (1919).
"77a. Opuntia depauperata sp. nov.
Plant 1 to 2 dm. high, with a flattened, much branched top; joints dark green, readily detached, terete or slightly flattened, 3 to 12 cm. long, 2 to 3cm. thick, puberulent; spines on young joints 2 or 3, on old joints sometimes 6 at each areole, reddish to pale brown, acicular, 1 to 2.5cm. long, nearly porrect; glochids tardily developing, conspicuous on old joints, yellow; ovary with a deep umbilicus.
Collected by Dr. and Mrs. J. N. Rose north of the station of Zig Zag, along the railroad above Carácas, Venezuela, October 17, 1916 (No. 21751).
This little cactus is very inconspicuous and only a few specimens were observed. The station is near the top of the mountains which separate the valley, in which Carácas lies, from the sea. The region here is not so dry as it is farther down on the seaward side of the mountains, but there are several other species of cacti associated with it.
Figure 279 is from a photograph of type plant taken by Mrs. Rose; figure 280 shows a joint.
A plant, apparently of this relationship, was collected by Dr. H. H. Rusby in 1917 on granite rocks, narrows of Magdalena River, Colombia. The joints, however, are glabrous, only 2 to 3 cm. long, the young joints have numerous brown spines and the young areoles produce long white wool."
Type: Dr. and Mrs J. N. Rose 21751, Venezuela, District Fédéral, au nord de la gare de Zig Zag, le long de la voie de chemin de fer au dessus de Carácas, 17 octobre 1916, conservé au New York Botanical Garden (NY: holotype et isotype; l'isotype était originellement conservé à l'herbier national américain du Smithsonian Institution à Washington (US)).
depauperata: du latin pauper, qui produit peu, pauvre: faiblement développé.
Fiche créée le 03/09/2005.
Synonyme de
Opuntia pubescens H.L.WendlandCommentaires
Publication originale:"77a. Opuntia depauperata sp. nov.
Plant 1 to 2 dm. high, with a flattened, much branched top; joints dark green, readily detached, terete or slightly flattened, 3 to 12 cm. long, 2 to 3cm. thick, puberulent; spines on young joints 2 or 3, on old joints sometimes 6 at each areole, reddish to pale brown, acicular, 1 to 2.5cm. long, nearly porrect; glochids tardily developing, conspicuous on old joints, yellow; ovary with a deep umbilicus.
Collected by Dr. and Mrs. J. N. Rose north of the station of Zig Zag, along the railroad above Carácas, Venezuela, October 17, 1916 (No. 21751).
This little cactus is very inconspicuous and only a few specimens were observed. The station is near the top of the mountains which separate the valley, in which Carácas lies, from the sea. The region here is not so dry as it is farther down on the seaward side of the mountains, but there are several other species of cacti associated with it.
Figure 279 is from a photograph of type plant taken by Mrs. Rose; figure 280 shows a joint.
A plant, apparently of this relationship, was collected by Dr. H. H. Rusby in 1917 on granite rocks, narrows of Magdalena River, Colombia. The joints, however, are glabrous, only 2 to 3 cm. long, the young joints have numerous brown spines and the young areoles produce long white wool."
Type: Dr. and Mrs J. N. Rose 21751, Venezuela, District Fédéral, au nord de la gare de Zig Zag, le long de la voie de chemin de fer au dessus de Carácas, 17 octobre 1916, conservé au New York Botanical Garden (NY: holotype et isotype; l'isotype était originellement conservé à l'herbier national américain du Smithsonian Institution à Washington (US)).
Étymologie
Opuntia: origine incertaine: voir la fiche de genre.depauperata: du latin pauper, qui produit peu, pauvre: faiblement développé.
Numéros de collecte
Vous pouvez chercher les numéros de collecte pour cette espèce dans :- la base de Ralph Martin : Opuntia depauperata
- la base de Christophe Ludwig : Opuntia depauperata
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
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