562 Britton : Studies of West Indian plants 



Spines 3-6, the longer 1. 5 mm. long; buds obovoid, 



very short pointed. 5. //. A r askii. 



Spines y 15 ; buds ovoid to subglobose. 



Areoles I cm. apart ; spines 1 cm. long. 6. //. undata. 



Areoles 2-3 cm. apart; longer spines 2-5 cm. 

 long. 

 Buds ovoid, long-pointed ; longer spines 



2.5 cm. long. 7. H. Brookii. 



Buds subglobose, short-pointed ; longer 



spines 4-5 cm. 8. //. laylori. 



i. Harrisia eriophora (PfeifT.) 



Cereus cubensis Zucc; Seitz, Allg. Gartenz. 2: 244. 1834. 



[Hyponym.] 

 Cereus eriophorus PfeifT. En urn. 94. i&37- 



Plant rather light green, the main stem 4 cm. in diameter or 

 more, the branches nearly as thick, erect-ascending, 8-ribbed or 

 9-ribbed, the ribs prominent, the depressions between them rather 

 deep. Areoles 3-4 cm. apart ; spines 6-9, the longer ones 2.5-4 

 cm. long, light brown with nearly black tips ; buds ovoid, sharp- 

 pointed, their scales densely covered with bright white woolly hairs 

 1 1.5 cm. long; flower about 18 cm. long; scales of the tube 

 lanceolate, acuminate, appressed, 1 1.5 cm. long, bearing long 

 white hairs ; sepals pale pink outside, the outer greenish ; petals 

 pure white, tipped with a hair-like cusp 5 mm. long ; filaments 

 white ; anthers oblong, yellow ; pistil cream-colored. 



Description from N. Y. B. G. no. 2S9J3, collected by C. F. 



Baker at Cajimar, Cuba, in 1907. 



Type locality : Cuba. 



Distribution : Cuba. 



Illustration : PfeifT. & Otto, Abb. u. Beschr. Cact. pi. 22. 



2. Harrisia Fernowi sp. nov. 



Plant 2.5-3 m - high; branches slender, about 2.5 cm. thick, 

 light green, 9-ribbed, the ribs not prominent, the depressions be- 

 tween them shallow. Areoles about 2 cm. apart; spines 8 11, 

 light brown with blackish tips, the longer ones 1 cm. long ; bud 

 subglobose-ovoid, its scales rather densely covered with tawny 

 curled woolly hairs 1 cm. long ; flower nearly 2 dm. long. 



Cereus pellucidus Griseb. Cat. PI. Cub. 116. 1866. Not C. pel- 



lucidus Otto. 1837. 



Description mainly from N. Y. B. G. no. 25766, collected by 

 Norman Taylor (no. 25 j), between Rio Grande and Rio Ubero, in 



