Opuntia macbridei Britton & Rose
Publication The Cactaceae 4: 261, fig. 238 (1923).
Publication originale:
"129a. Opuntia macbridei sp. nov.
A low bush; 6 dm. high, forming broad impenetrable thickets on gravelly river flats; joints obovate, 6 to 8 cm. broad, 8 to 15 cm. long, glabrous, at first light green, in age dark green; leaves minute, 1 to 2 mm. long, caducous; areoles on young joints hemispheric, brown-felted and with brown glochids, on old joints 2 to 3 cm. apart; spines 2 to 4, in age gray to horn-colored, with yellowish tips, very unequal, the longest up to 5 cm. long, stout subulate; flowers very small, orange to orange-red; petals only 4 to 5 mm. long; ovary tuberculate, bearing many brown-felted tubercles but without spines, deeply umbilicate; fruit deeply umbilicate, red to purple.
Collected by Macbride and Featherstone at Huanuco, Peru, altitude 2,300 meters, August 28 to September 3, 1922 (No. 2365, type), and April 8, 1923 (No. 3250).Mr. Macbride states that the seeds are brown. All the fruits we have seen were sterile; these sterile fruits on falling to the ground take root and form new plants.
This interesting plant, which proves to be undescribed, we have named for Mr. J. Francis Macbride, who led the Botanical Expedition of 1922 to South America, sent out by the Field Museum of Natural History, under the Captain Marshall Field fund.
Figure 238 is from a photograph showing the habit of this plant."
Type: Macbride et Featherstone 2365, Pérou, Département Huánuco, Huánuco, 2300m d'altitude, 28 août au 3 septembre 1922, conservé au New York Botanical Garden (NY: holotype).
macbridei: en l'honneur du botaniste américain James Francis Macbride (1892-1976).
Fiche créée le 03/09/2005.
Synonyme de
Opuntia quitensis F.A.C. WeberCommentaires
Une forme d'Opuntia quitensis à articles moins allongés.Publication originale:
"129a. Opuntia macbridei sp. nov.
A low bush; 6 dm. high, forming broad impenetrable thickets on gravelly river flats; joints obovate, 6 to 8 cm. broad, 8 to 15 cm. long, glabrous, at first light green, in age dark green; leaves minute, 1 to 2 mm. long, caducous; areoles on young joints hemispheric, brown-felted and with brown glochids, on old joints 2 to 3 cm. apart; spines 2 to 4, in age gray to horn-colored, with yellowish tips, very unequal, the longest up to 5 cm. long, stout subulate; flowers very small, orange to orange-red; petals only 4 to 5 mm. long; ovary tuberculate, bearing many brown-felted tubercles but without spines, deeply umbilicate; fruit deeply umbilicate, red to purple.
Collected by Macbride and Featherstone at Huanuco, Peru, altitude 2,300 meters, August 28 to September 3, 1922 (No. 2365, type), and April 8, 1923 (No. 3250).Mr. Macbride states that the seeds are brown. All the fruits we have seen were sterile; these sterile fruits on falling to the ground take root and form new plants.
This interesting plant, which proves to be undescribed, we have named for Mr. J. Francis Macbride, who led the Botanical Expedition of 1922 to South America, sent out by the Field Museum of Natural History, under the Captain Marshall Field fund.
Figure 238 is from a photograph showing the habit of this plant."
Type: Macbride et Featherstone 2365, Pérou, Département Huánuco, Huánuco, 2300m d'altitude, 28 août au 3 septembre 1922, conservé au New York Botanical Garden (NY: holotype).
Étymologie
Opuntia: origine incertaine: voir la fiche de genre.macbridei: en l'honneur du botaniste américain James Francis Macbride (1892-1976).
Numéros de collecte
Vous pouvez chercher les numéros de collecte pour cette espèce dans :- la base de Ralph Martin : Opuntia macbridei
- la base de Christophe Ludwig : Opuntia macbridei
Forum
Vous pouvez faire une recherche sur le forum.Auteur
philippe (contacter)Fiche créée le 03/09/2005.
Fiches de botanistes :
Britton, Nathaniel Lord
Fiche du genre :
Opuntia (Linné) Miller 1754
Synonymes :
Aucune fiche.
Espèces du même genre :