BORZICACTUS. 



161 



Plants small, procumbent or ascending, 2 to 6 dm. long, 3 to 5 cm. in diameter; ribs 18 to 20, 

 low; areoles approximate; spines bright yellow, numerous, acicular, i cm. long or less; flower-buds 

 covered with white wool or hairs; flowers near the end of the branches, 7 to 8 cm. long, pinkisli to 

 orange; flower -tube naked at base; perianth-segments oblong, acute, apiculatc; scales on the ovary 

 and flower bearing long white and brown hairs in their axils. 



Type locality: Near Nabon, Ecuador. 



Distribution: In the vicinity of Nabon, Ecuador. 



This species has long been a puzzle and so far as we know the only record of its having 

 been previously collected is that of the type at Nab6n. Dr. Rose visited Nab6n in 19 iS, 

 where he found this species very abundant on the dry hills. Its range is very circumscribed , 

 for it does not extend very far either north or south of Nabon. It is readily distinguished 

 from the other species of the genus seen in Ecuador in its very dense mass of short yellow 

 spines and its larger lighter-colored flowers. These flowers are very attractive and it is 

 to be hoped that some of the living material sent to New York may produce flowers. The 

 plants, however, had to be carried for a long distance by pack train before being shipped to 

 New York and did not arrive in very good condition. Dr. Rose's plant from Nab6n was 

 collected September 25, 191 8 (No. 23029). We have tentatively referred here his plant 

 from Tablon de Ofia, collected September 27, 1918 (Xo. 23130), but it has smaller flowers. 



Illustration: Schumann, Gesamtb. Kakteen f. 21, as Cereus isogonus. 



Fig. 230. — Borzicactus raorleyanus. 



4. Borzicactus acanthurus (Vaupel). 



Fig. 231. — Borzicactus morlcyanus. 



Cereus acanthurus Vaupel, Bot. Jahrb. Engkr 50: Beibl. in : 13. I9i3 



edge 



llic 

 to 



Plants low, spreading and procumbent, with the tips ascendmg, sometnncs sprawlmg over 1 

 ^..^^ of a cliff, with long hanging branches, i to 3 dm. long and 2 to 4 cm. m diameter; r.bs 15 

 18, very low, rounded, Separated by narrow acute intervals; areoles small approximate; flowermg 

 areoles producing tufts of white wool about the flowers; flowers scarlet; tube slender, straight or 

 a Uttle curved, 4 to 5 cm. long; Hmb about 2.5 cm. broad; inner perianth-segments spreading, acute, 

 filaments white below, scarlet above; style rose-colored, longer than the iilaments; sbgma-lobes 

 green; fruit globular, 2 cm. in diameter. 



Type locah 

 Distrihutio 



Matucana 



m 



the narrow valleys near Lima and along the 



Rimac River to the east of Lima 



