458 BULLETIN OF THE TORREY CLUB [vol.. 53 



which it differs also in its aquatic habit and wrinkled spikelets. 

 The type specimen is preserved in the Herbarium of the New- 

 York Botanical (iarden. 



Aristida Pradana Leon, sp. nov. 



Perennial, culms cespitose, 60 to 80 cm. long, erect, wiry, 

 somewhat flattened, simple and naked, the upper leaves of the 

 culms, if any, reduced to the elongate, strongly adherent and 

 mostly bladeless sheath; ligule a short ciliate membrane less 

 than 0.5 mm. long; blades firm, closely involute from the base, 

 with usually a few hairs on each side of it, scaberulous on the 

 upper surface, glabrous beneath, flexuous, often splitting, up to 

 60 cm. long or more; panicle 25 to 35 cm. long, the branches few 

 flowered, usually with one branchlet at base, at first stiffly erect, 

 finally divergent or spreading, the lower ones distant, up to 8 

 cm. long, the axis and branches scabrous; glumes unequal, 10 

 to 12 mm. long, the first caducous, scabrous on the keel, i-nerved, 

 awn-tipped, the second glabrous, awn-tipped from a bifid apex; 

 lemma 15 to 17 mm. long, including the short pilose callus about 

 1 mm. long, and the dark colored scaberulous beak; awns un- 

 equal, ascending, the central one slightly recurved, 2 to 3 cm. 

 long, the lateral ones somewhat approximate, one-half as long 

 as the central one or little more. 



Arid rocky silicious hillside, Peladeros de Jauco, southwest 

 of Baracoa, Oriente, Cuba (Leon 12299). 



This species is allied to A. divaricata Humb. & Bonpl. of 

 Mexico, but may be distinguished by its much longer and closely 

 involute leaves. It is named in honor of Sr. Enrique Prada of 

 Jauco, who helped very efficiently in collecting work. The 

 type specimen is preserved in Colegio de la Salle Herbarium, 

 Vedado, Havana. 



Chloris Morales-Coelloi Leon, sp. nov. 



Perennial, glaucous; culms cespitose, erect, glabrous, com- 

 pressed, freely branching from the lower nodes, 50 to 80 cm. tall; 

 sheaths keeled, often longer than the internodes, glabrous, the 

 basal ones overlapping; ligule a short ciliate membrane about 

 0.5 mm. long, with a few hairs behind on each side; blades flat or 

 conduplicate, glabrous on both surfaces, abruptly pointed at 

 apex, 8 to 20 cm. long, 2 to 4 mm. wide; inflorescence finally 

 long exserted; spikes 5 to 11, mostly 6 or 7, ascending, finally 

 divergent or spreading, straight or recurved, sometimes flexuous, 

 6 to 9 cm. long; axis of inflorescence 1 cm. long or less, the rachis 

 of the spikes scabrous and densely pubescent at base; spikelets, 

 exclusive of the awns, mostly 3 to 3.4 mm. long, appressed, im- 



