Britton : Studies of West Indian plants 13 



Ginoria spinosa Griseb. Cat. PI. Cub. 106. 1866 



I know this only from Wright's 2545, collected in eastern 

 Cuba (not western Cuba, as cited by Koehne). Rugel's 727 from 

 the Rio San Juan at Matanzas, as shown by our specimen, is 

 certainly G. americana Jacq. and was so written up by Grisebach, 

 though this number, as studied by Koehne, is by him referred to G. 

 spinosa. The true G. spinosa Griseb. {Wright 2545) is quite a 

 different plant, with much smaller leaves and acicular spines; it 

 is possible, however, that the species are not distinct. 



Ginoria glabra Griseb. Cat. PI. Cub. 106. 1866 



Known to me from Wright's 2544, collected in eastern Cuba; 

 and from Shafer's 8784, collected at Farallon de la Perla, Oriente, 

 where it grows on cliffs as a shrub 6 dm. high. It is evidently 

 quite distinct from the other species. 



Ginoria arborea sp. nov. 



A tree, 8 meters high, the trunk up to 2.5 dm. thick, the 

 bark gray, the branching irregular, the twigs of the season 4- 

 angled with internodes 5-15 mm. apart; nodal spines 4, spread- 

 ing, recurved, yellowish, I 1.5 mm. long. Leaves sessile, linear- 

 oblong, 1.5-3 cm - l n g> 2 ~5 mm - wide, coriaceous, bright green, 

 shining, obtuse at the apex, narrowed at the base, strongly pin- 

 nately veined, the veins prominent on both surfaces; flowers 

 solitary in the axils; pedicels filiform, a little shorter than the 

 leaves; sepals triangular-lanceolate, acute, 4 mm. long. 



Thicket, Leeward Point, United States Naval Station, Guanta- 

 namo Bay, Cuba, March 1909, Britton 2217. 



Ginoria curvispina Koehne, loc. cit. 349. 1882 

 In the palm barren near Santayana, Camagiiey, this species 

 is a shrub I meter high {Britton 2368) ; near Tiffin, Camagiiey, 

 it grows in wet woods and becomes nearly 3 meters high. 



Ginoria ginorioides (Griseb.) Britton comb. nov. 

 Diplusodon ginorioides Griseb. Cat. PI. Cub. 106. 1866. 

 Ginoria Diplusodon Koehne, Bot. Jahrb. 3: 350. 1882. 



This beautiful shrub or tree inhabits cliffs and rocky hillsides; 

 in the province of Santa Clara it ascends to 560 meters on the 



