3S2 

 (C.l ) ERAGROSTIS Host. 



Paiiifk's various, usually open. Spikclcls usually densely many-tlow- 



ered. Flowering glunics inihricatc, strongly ll-uci-ved, keeled, acute. 



Species about 12o in all wanu countries; ahout 10 in llic I'liiliiipiues. 



1. RhathiUa of spikelets more or less jointed and breaking up from 

 above downwaird. (Sect. Cataclastos.) 



2. Flowering glumes strongly acuminate ^^)E. hifiiorhula 



2. Flowering glumes acute or obtuse. 



3. Panicles 10 cm. long or less. 



4. Panicles open, rather lax (2) K. Icui-Uu 



4. Panicles dense, spike-like, densely flowered ; 



culm viscid below the panicle (3) E. viscosa 



3. Panicles 20 to 40 cm. in length. 



4. Panicle branches whorled, scarcely branched 



from the base; spikelets 6 to 10 flowered... (4) E. iiitcrrupta 

 4. Panicle branches whorled and branched from 

 the base, the branchlets capillary ; spikelets 



5-flowered or less (5)E. japoiiira 



1. Rhachilla of spikelet tough, persistent; flowering glumes falling 

 away from its base upward. (Sect. Pterobssa.) 



2. Spikelets flat, elliptical-ovate, the lateral nerves of the 



flowering glumes very prominent (6) E. imioloidrs 



2. Spikelets linear to linear-oblong, compressed ; nerves of the 

 flowering glume prominent or not. 



:V Panicle branches elongated, spreading or ascending. 



4. Annual : spikelets pale (7) E. ilisKtiis 



4. Perennial : spikelets plumbeous. 



5. Panicles about 20 cm. long ; branches 



ascending (8) E. clefjantula 



5. Panicle^ 10 cm. long or less ; branches 



usually divaricately spreading (9) E. rlonfiata 



.3. Panicle branches short, appressed, densely flowered 

 throughout, giving the panicle a spiciform appear- 

 ance (10) K. Sjxtitinoidcs 



(1) Eragrostis lasioclada Menill. sp. uov. ^^ Cdhichiylos. 



Perennis; culinis erectis, ad 70 cm. altis, .'l-iiodis. siiuplicihus ; \agiiiis 

 quam internodiis brevioi'ilius. inargiiiihiis sparse louge-pilosis : laiiiinis 

 anguste linearihus. acuiniiiatis, l.")--^() cm. loiigis, 2-;^ mm. latis: pani- 

 culis olilongis. ad lo cm. longis. i-haclii ramis ramulis pedicclliltus(iue 

 sparse longe-pilosis, ramis inrerioi'ihiis ad I cm. longis. ei'cctis vcl ascon- 

 dentil)us: spicidis ohjongis. (i-l mm. longis. 1 mm. latis. ad .■)-lloi-is : 

 gimnis sterilil)iis inae<pialil»us. 1-nervis, acutis \cl acuminatis: gliimis 

 t'ertilihus ^.o-;}..") mm. longis, suhulato-aciiminat is. 



A tutted ei-ect perennial grass. Ilie culms alioul 7<» cm. tall, slendci'. 

 simple, glabrous or slightly pilose; nodes ;>. glaWroiis. Sheaths shorter 

 than the internodes, compi'osseil. the margins slightly long-piluse: ligule 

 shoi't. trnncato; hiado.s nai'rowly linear, plane oi' iiiMilute. ;icuminate. 

 rigid, 1') to '-'H cm. long. '! to ;> mm. wide slightlx luiig-pilo.^c. heconnng 

 glal)r()iis. Panicles ohhrng. strict. naifdW. ahout I") cm. hmg. 1 to -J cm. 

 in diaineler. the lower hi'aiiches I cm. long, ascending oi' erect, the 

 hranelies, hranchlets, and pedicels with scattered hnig white hairs. Spike- 

 lets oblong, pale or purplish, ahout o-tlowered. (1 to "i mm. long, 1 mm. 



