SELENICEREUS. 205 



Illustrations: Monatsschr. Kakteenk. 9:23; Rep. Mo. Bot. Gard. 16: pi. n, f. 4, 5; 

 Schumann, Gesamtb. Kakteen Nachtr. f. 7; Bliihende Kaktecn 3: pi. 161, 162; Wildeman, 

 Icon. Select. 3: pi. 103, all as Cereus hamatus; Mollers Deutsche Gart. Zeit. 14: 340; De 

 Laet, Cat. Gen. f. 30, as Cereus rostratus; Rev. Hort. Beige 40 : after 184, as Cereus kostratus;* 

 Bull. Brooklyn Inst. Arts and Sci. 5: 236, 237 (2 figures). 



Figure 282 is from a photograph of a flower, taken at the New York Botanical Garden 

 on the evening of October 10, 19 10; figure 283 shows a part of a branch. 



Fig. 284. — Selenicereus vagans. 



12. Selenicereus vagans (K. Brandegee). 



Cereus vagans K. Brandegee, Zoe 5: 191. 1904. 



Cereus longicaudatus Weber in Gosselin, Bull. Mus. Hist. Nat. Paris 10: 384. 1904. 



Stems creeping over rocks, often forming large clumps, more or less rooting, 1 to 1.5 cm. in 

 diameter; ribs about 10, low; areoles 1 to 1.5 cm. apart; spines acicular, numerous, less than 1 cm. 

 long, brownish yellow; flower 15 cm. long; tube, including throat, about 9 cm. long, slightly curved, 

 brownish, with small scattered scales bearing clusters of 5 to 8 acicular spines in their axils; throat 

 narrow, 5 cm. long; outer perianth-segments linear, brownish to greenish white, 6 cm. long; inner 



*Doubtless error for rostratus. 



