Publication The Cactaceae; 2: 104 (1920).
Basionyme Cereus squarrosus Vaupel 1913
(Vaupel) Hutchison 1963
et description de cette espèce
dans le Britton & Rose correspondent en fait à Corryocactus erectus
"1. Erdisia squarrosa
Vaupel, Bot. Jahrb. Engler 50:
Stems 1 to 2 meters long, 1 to 3 cm. in diameter; ribs 8 or 9; areoles 1 to 1.5 cm. apart; spines about 15, yellowish, very unequal, somewhat swollen at base, the longest ones 4 cm. long; flowers borne toward the ends of branches, 2.5 to 4 cm. long including the ovary, sometimes as much as 5 cm. broad; inner perianth-segments 1.5 cm. long; filaments 1 cm. long or less; style stout, 1.5 cm. long; fruit
1.5 to 2 cm. in diameter, juicy, spiny, the clusters of spines falling off early; seeds minute.Type locality:
Tarma, Department of Juni, Peru.Distribution:
The highlands of eastern Peru.
This species was collected by Dr. J. N. Rose below Cuzco, Peru, in 1914, when flowers and stems were obtained. Some ot the living plants which were sent to the New York Botanical Garden survived. It was first seen by him about 10 miles below Cuzco, along the railroad running to Juliaca, and was frequently observed a long distance below Cuzco, being easily recognized by its scarlet flowers, which in September were just appearing.
In June 1914, Ellwood C. Erdis collected living specimens 40 miles west of Cuzco, at 2,450 meters altitude, but these died. In November of the same year he again collected the species, this time in flower.
In May 1915, O. F. Cook and G. B. Gilbert collected the plant at Ollantaytambo, Peru, at an altitude of about 3,000 meters. These specimens were accompanied by both flowers and fruit
, and some good habit and detail photographs were taken.
Figure 154 is from a photograph taken by O. F. Cook at Ollantaytambo, Peru, in 1915; figure 155 shows portions of the plant photographed."
Erdisia: en l'honneur du topographe américain Elwood C. Erdis (1867-1944), qui dirigea le dégagement des ruines de Machu Pichu lors de l'expédition de la National Geographic Society et de l'université de Yale en 1914-1915.
Numéros de collecte
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Fiche créée le 09/12/2006.