Britton : Studies of West Indian plants 565 



the longer ones 2-2.5 cm. long ; bud ovoid, prominently long- 

 pointed, its scales with few curled white hairs 7- 10 mm. long ; 

 fruit yellowish, ellipsoid, about 8 cm. long, 5-6 cm. thick, rounded 

 at both ends, the tubercles very low, with tips only 1.5 mm. high. 



Description from N. Y. B. G. no. 261-f, collected at George- 

 town, Long Island, Bahamas, by N. L. Britton and C. F. Mills- 

 paugh, in 1907 (no. 6jjy). Named in honor of Hon. Herbert 

 A. Brook, Registrar of the Bahamas, in recognition of his valuable 

 aid in our exploration of these islands. 



The plant of Florida, of which I do not yet know the buds 

 or the flowers, more closely resembles this Bahamian species 

 in its spines and areoles than it does any of the others here de- 

 scribed. Our living plant, N. Y. B. G. no. icjpoo, was collected 

 by Prof. P. H. Rolfs on islands east of Malabar and brought to 

 the Garden by Dr. J. K. Small in 1903. As shown by an her- 

 barium specimen, prepared by Dr. Small at that time (no. yS), the 

 fruit of this species is nearly globular, about 5 cm. in diameter, 

 and apparently smooth or nearly so. We also have an excellent 

 photograph, taken by Mr. C. L. Pollard on Key Largo ; and Cur- 

 tiss' N. A. Plants no. g6j, from a locality between the Indian 

 River and the ocean, is this same species, which is described in 

 Chapman's Southern Flora, at least in so far as the flower is con- 

 cerned, under the name Cerens monoclonos, but it is not C. mono- 

 clonos of De Candolle. 



8. Harrisia Taylori sp. no v. 



Plant light green, branched above, 1.5-2 m. high, the branches 

 divaricate-ascending, rather stout, 4 or 5 cm. thick, 9-ribbed, the 

 ribs rounded, the depressions between them rather deep. Areoles 

 2-3 cm. apart; spines 9-12, the longer 3-5 cm. long, ascending; 

 bud globose-ovoid, short-pointed, its scales with sparse curled 

 grayish-white wool $6 mm. long. 



Description from N. Y. B. G. no. 2jj6j, collected by Norman 

 Taylor on the sea-beach between Rio Grande and Rio Ubero, in 

 in eastern Cuba, in 1906 (no. 2jj). 



9? Cekeus divaricatus Lam. Encycl. 1 : 540. 1783. 



Cerens divergens Pfeiff. Enum. 95. 1837. 



Pilocerens divaricatus Lemaire, Rev. Hort. 1862 : 427. 1862. 



Type locality : Santo Domingo. 



Distribution : Santo Domingo and Haiti. 



