FEB. 1903. PLANTS YUCATAN^ MILLSPAUGH & CHASE. 



dense, i6~3o-flowered, pale green tinged with purple or brown, 

 on flattened pedicels i mm. long or less; joints of rachilla .3 mm. 



long, articulated, falling with the 

 fruit and glumes. First and second 

 glumes lanceolate, acuminate, hispid 

 on the strong keels, first 1.5-2 mm., 

 second 22.3 rnm. ; floral glume 

 2.2-2.6 mm., acuminate, hispid on 

 the keel; palea 2-2.2 mm., acu- 

 minate, hispid on the winged 

 keels. Grain reddish-brown trans- 

 lucent, narrowly ovoid, minutely 

 longitudinally striate; .3-.4X.7-.9 

 mm.; in section obovate, with trun- 

 cated plane ventrum. 



Hab. Sea shore, Sisal, Oct. 

 24, 1865, Schott64O, this specimen has 

 panicles 12-13 cm - l n g with long 

 erect branches, andspikelets on ped- 

 icels 2-3 mm. long (published in Field Col. Mus. Bot. 1:351 AsJSra- 

 grostis elongata Jacq.), but floral glumes and grain agree with those of 

 E. amoena Presl. ; San Anselmo Gaumeri2O7, Chichankanab, 2249,2251. 



Eragrostis Mexicana Link Hort, Berol. 1:190. 



Panicle exserted, loose and open, 6-13 cm. long, 3-7 cm. wide, 

 axis and branches scabrous at least 

 above; branches ascending, very 

 slender, somewhat flexuous. Spike- 

 lets 1.5x4-4.5 mm., dense, 7-9- 

 flowered, -. pale or grayish green, on. 

 capillary pedicels i to 2 times their 

 own length or more; joints of the 

 rachilla. 5 mm. long articulated, leav- 

 ing the persistent paleae after fruit 

 and glumes have fallen. First glume 

 .8-. 9 mm., ovate, acute, keeled, 

 glabrous; second glume ovate, acute, 

 i 1.2 mm., hispidulous on the keel; 

 floral glume 1.4-1.6 mm., acute, his- 

 pidulous on the keel; palea 1.2 mm , 

 acute, hispid on the keels. Grain 

 brownish red, translucent, ovoid, 



minutely longitudinally striate, .4X.8 mm.; in section conoidal with 

 convex ventrum. 



Hab. Chichankanab, Gaunter 1260, Izamal, 2471, 2480, 2486. 



DISTICHLIS Raf. Journ. Phys. 89:104. 



Plants dioecious, spikelets several flowered, compressed in short, 

 contracted panicles. Staminate and pistillate spikelets similar, but 

 the staminate usually larger. Empty glumes 2, floral glume mem- 

 branaceous, rigid, 5-9 nerved, awnless. Grain laterally compressed^ 



Don 



