FEB. 1903. PLANTS YUCATAN^E MILLSPAUGH & CHASE. 



33 



Hab. Common in small limestone caves in the brush and forest 

 about Izamal, 4 feet high, Jan. to Dec., 1895, Gaumer 2488, 522 

 (Panicum brevifolium Kunth. Field Col., Mus. Bot. 1:288), shady 

 places, San Anselmo, Aug., 895, 2027. 



Panicum maximum Jacq. Ic. PI. Rar. i, t. 13:76. 

 Panicum jumentorum Pers. 



Panicle included at the base or short exserted, 9-35 cm. long, 

 5-15 cm. wide; branches sub-verticillate, ascending, 4-15 cm., lower 



third to half naked; axis and rachis glabrous 

 or minutely hispidulous, the latter with a 

 tuft of tawny hairs at the base. Spikelets 

 1.1x3.3 rnm., green, oblong-lanceolate, 

 acute, glabrous, on flexuous, hispidulous 

 pedicels. First glume y$ the length of 

 spikelet, 5-nerved, the lateral pair faint; 

 second slightly shorter than the third, 5- 

 nerved ; third 5-nerved, subtending a 

 membranaceous palea of equal length and 

 a staminate flower; fruiting glumes i X2.3 

 mm., pale stramineous, oblong, subacute, 

 minutely pubescent at the summit, trans- 

 versely rugose. Grain greenish white, oblong, .yx 1.4 mm., in sec- 

 tion convexo-concave. 



Hab. Merida, Aug. 20, 1865,^/^/5^5; Izamal, Gaumer 719. 

 Common in cultivation as Guinea grass, SACATE GUINEA, the princi- 

 pal forage grass of the haciendas. 



Panicum divaricatum L. Amoen. Acad. 5:302. 



Panicle included at the base, 4-12 cm. long, 3-8 cm. wide, 

 branches divaricate or deflexed, 2-4 cm. long; axis and rachis sub- 

 flexuous, hispidulous, pubescent in the axils. Spikelets 2.8x4 rnm. 

 and 3 mm. thick, light green or 

 becoming purple, or sometimes 

 shining black, obovate, apicu- 

 late, deflexed on slender his- 

 pidulous pedicels, i to several 

 times the length of the spike- 

 let. First glume 1/3 the length 

 of the spikelet, inflated, sub- 

 orbicular, acute, with 5 strong, 

 hispidulous nerves and faint 

 glabrous intermediate nerves, 

 apex ciliate; second and third 

 equal, inflated, papery, n- 

 nerved, ciliate at the apex, 

 otherwise glabrous, the third 

 subtending a membranaceous 

 palea and sometimes a stami- 

 nate flower; fruiting glumes 2.1x3.3 rnm., greenish-white or tinged 

 with purple, obovate-oblong, striatulate, shining, floral glume and 



