6o 



FIELD COLUMBIAN MUSEUM BOTANY, VOL. III. 



30-50 cm. long, 10-15 cm - wide, branches subfasciculate, compound, 

 ascending, spikelet-bearing to near the base, axis and rachis scabrous 



on the angles. Spikelets tawny, 

 5-6x13-14 mm., 5-7 flowered on 

 pedicels 2-5 mm. long; joints of 

 rachilla i mm., clothed with white 

 silky hairs 10 mm. long. First 

 glume 5 mm., lanceolate, acute, 

 5-nerved; second 6-8 mm., lance- 

 olate, acuminate, 3-nerved; lowest 

 floral glume 10-12 mm., narrowly 

 lanceolate, acute, 3-nerved, sub- 

 tending a palea 4 mm. long and a 

 staminate flower; glumes of per- 

 fect flowers 6 mm., lanceolate, 

 subacute, 3-nerved; palea 4 mm., 

 acute, hispidulous on the nerves. 

 Grain reddish brown, obovate ob- 

 long, mucronate, .6x1.5 mm.; in 

 section convexo-concave. 

 Hab. Chichankanab, Gaumer 1355. 

 The species apparently rarely perfects seed. 



MONANTHOCHLOE Engelm. Trans. St. Louis Acad. Sci. 1:436. 



Plants direcious, 23 flowered, spikelets usually sessile in pairs 

 and concealed in the axils of the crowded, short, rigid upper leaves. 

 Grain subterete. Stamens 3. 



Monanthochloe littoralis Engelm. ibid. 



Staminate spikelets 2x8 mm., empty glumes leaflike, rigid, 

 membranaceous sheaths and short veiny squarrose blades, 8-10 

 long, floral glume 6-7 mm., membran- 

 aceous, ovate, obtuse, 3-nerved, nerves 

 prominently 3-ribbed; palea shorter, hy- 

 aline, lanceolate, truncate or denticu- 

 late, pubescent on the two nerves. 

 Pistillate spikelets 2.2x8 mm., empty 

 glumes like those of staminate spike- 

 lets; floral glume rigid, 6-7 mm., 

 broadly ovate, obtuse, 3-nerved as in 

 staminate floret but less promi- 

 nently; palea equal in length, ovate, 

 acuminate, the nerves broadly winged 

 below. Grain dull brown, lanceolate, 

 1-1.1x3.4 mm.; in section rounded 

 hexagonal, the ventrum slightly con- 

 cave. 



Hab. Abundant at the port of Silam, 2 feet high, April, 1895, 

 Gaumer 624, iSSo. 



TRIODIA R. Br. Prod. Fl. Nov. Holl. 182. 



Inflorescence an open branching panicle. Spikelets nearly terete^ 

 several flowered, perfect, or uppermost floret staminate; rachilla 



with 

 mm. 



