2o6 



run CACTACEAE. 



perianth-segments white, oblanceolate, 6 cm. long, with short acuminate tips, the margins undulate 

 or toothed, especially above; stamens numerous, weak; filaments white or white with greenish 

 bases; style greenish or greenish with cream-colored upper part, slender; stigma-lobes 12, linear; 

 ovary covered with acicular spines. 



Type locality: Mazatlan, Mexico 



Distribt 



Western coast of Mexico 



Washingt 



Illustration: Pamphlet descriptive of Carnegie Institution of 

 and eighth issues, p. 23 (reproduced here on p. 239). 



Figure 284 shows a flower of a plant which bloomed at the National Botar 

 Washington, D. C, in 1905; figure 285a shows a tip of shoot and 2856 a shoot 

 bud, from specimens grown at the United States Department of Agriculture. 



seventh 



Fig. 285.-0 and b, Selenicereus vagans; c and d, Selenicereus murrilHi. X0.66. 



13. Selenicereus murrillii sp. nov. 



very 



green 



beanng white wool and minute spines; spines s or 6. minute 



cm 



acuminate 



other spmes conic, greenish to h 

 night, 15 cm. long, 15 cm. broad 

 cm. long, purplish green without 



tube 



minute 



greenish 

 acute 



stamens 



and these greemsh. together forming a campanulate corolla; segments broadly spatul ate, 4 to 5 cm. 

 long, obtuse; stamens numerous slender, weak and somewhat declining on the perianth-segments, 

 cream-colored; s yle slender, weak, cream-colored; stigma-lobes 9. linear; cream-colored; ovary bear- 

 mg numerous rather large areoles. these white-felted and with i to 3 short spines but no long hairs. 



Collected by Dr W. A. Murrill, near Colima, Mexico, in 1910 (No. 31802 N. Y. B. G.). 

 Although we have had it growing in Washington and New York for more than ei^ht vears. 



- -f 



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i 



i 



>T. 





