Pomona College Journal of Economic Botany 407 



This species is known only from the specimens distributed by Van 

 Hermann under n. 4245, collected on the same Mt. Guanajay in the Province 

 Pinar del Rio, where the photograph was taken. The specimen bears only 

 fruits and the flowers remain unknown. 



As I have already pointed out (see under T. drudei) there is much 

 resemblance between T. punctidata and T. drudei in general appearance, 

 and it is necessary to obtain better specimens with flowers of both to estab- 

 lish these species on more sure diagnostic characters. Probably T. drudei 

 is from the east of Cuba, as most of Wright's plants are, and T. punctulata 

 is its representative form in the west part of the island. 



Figure 167. Thrinax punctulata. a, portion of a fruiting branchlet; b, fruit with the 

 perianth as seen from behind; c, seed showing the hilum; d, seed cut longitudin- 

 ally through the embryo. From Van Hermann No. 4745. 



COCCOTHRINAX 



Sargent in Bot. Gaz. XXVII (1899), 87; Becc. in Webbia di U. Mart., 

 II (1907), 288. Thrinax (partim) auct. plur. Thrincoma O. F. Cook in 

 Bull. Torrey Bot. Club, 1901, 539. Tringhis O. F. Cook 1. c, 544. 

 A. Leaves of adult plants very deeply divided into a relatively few 

 (25-30 at most) segments, 

 a. Leaves conspicuously silvery-white underneath, with very rigid 

 radiating segments. Flowers more or less pedicellate. 



C. miraguano 



aa. Leaves green on both surfaces. Flowers sessile. C. rigida 



AA. Leaves having the blades entire in the center for at least the third 

 part of the entire length, but usually more than that, and divided 

 at the periphery into numerous (35-40) segments, 

 a. Leaves lustrous on the upper surface, and greyish or whitish 

 on the lower. 



b. Flowers with 12 stamens. Fruits more or less pedicellate 

 on the lower part of the branchlets, almost sessile above. 



C. martii 



