330 



( 15) ISCHAEMUM I. inn. 



Iiaeeiiics two lo innny, diiiiiiilc Spikdcts hi-ojid, llic pcilicclhitc like 

 the sessile l)iil ri-(M|iiciitly iinawncd. i-arcly staiiiiiiatc or ciiiply. First 

 empty illume cofiaccous oi' niciiilii'aiious, obtuse, ol'teii •^-toothed. Flow- 

 ering glume awiieil I'lom tlu' apex or from the iioteli. ^fostlv low 

 grasses witli father hi'oad leaves. 



species ;il)(iut 40. tldpies of liolli lieiiiisjilieres, 7 ill llie I'll i 1 i |)|)ines. 



1. Artitulations and pedicels .'5-angled ; inflorescence 

 glabrous or slightly ciliate or pilose, the hairs white. 

 2. First glume of the sessile spikelet transversely 

 rugose. 



3. First glume nearly flat, with 2 to 4 mar- 

 ginal nodules oi- low transverse ridges ; 



perennial (1)/. (irislnlion 



3. First glume strongly convex, closely trans- 

 versely ridged; annual (2)/. niyDsuin 



2. First glume of the sessile spikelet not trans- 

 versely rugose. 

 3. Spikes two. 



4. Fourth glume of the sessile spikelet 



unawned ; a maritime grass (3) /. miilirum 



4. Fourth glume of the sessile spikelet 

 awned. 



5. Culms erect (4) /. mrrrilUi 



5. Culms much elongated, pros- 

 trate (.5) /. arundinaceum nnlifaiis 



3. Spikes five to six -. (6) /. intcrmcdiuni 



1. Articulations and pedicels 2-angled ; inflorescence densely 



ferruginous-villous _ (7) /. aii!iit.'itif(}lium 



(1) Ischaemum aristatum J. inn. Sp. PI. (IS.i;}) l()4!t. \;ir. gibbum (Trin.) 

 Hack, in DC. .Moiio^'. Plian. 6 (ISS!)) 204; Pilger in I'erk. Fraj:-. Fl. I'hilip. 

 (1!)()4) l:V.t. /srlidcmiiui (/ihlnnii Tiin. in Mem. Acad. St. Pgtersb. \'l. 2 ( IS:}:?) 

 295; Miq. Fl. Ind. ]5at. 3 (185!)) 498; F.-Vill. Xov. A]>]). (18S:^) ;515. Aiuho- 

 poyuH gihhum Steud. Syn. 1 (1855) 370. 



Luzon, Province of Isabela. Echague (135 Merrill) June, 1902; Province of 

 Xueva Viscaya, Dupax (253 Merrill) May, 1902: Manila (09 Mcdretjor) October, 

 1904: {Xrrihiicr) ,lune. 1902; {Merrill) Jantuuy. 190(). C'UMO.v (409, 077 

 Merrill) December, February, 1902-03. 



ICndeniie. i. e.. tlie \ariety. tbe sjieeies India. Cliina. and .Malaya. 



(2) Ischaemum rugosum Salisb. Ic. (]791i ]. /. /. \ar. distachum (Cav.) 

 /. rKfjomiin var. sef/elum (Trin.) Hack, in DC .Monog. I'lian. 6 ( 1SS9) 208; 

 Pilger in P<-rk. Frag. Fl. I'Jiilip. (1904) 139. i'ollttdon ilislachi/a Cav. icon. 5 

 (1799) 37. /. J/dO. Jscliiiriniiiii eollaihxi W. P.r. I'lddr. (1810) 205; Kuntli. 

 \-A\nu\. 1 (1833) 513; .\li(|. Fl. Ind. P.at. 3 (1S5!)) 4'.IS. Ischdiin uiii .^ei/clinii 

 Tiin. in .Mem. Acad. St. i'etersb. \l. 2 (1833) 294. A nilro/iofjoti seijehnii Steud. 

 Syno|)sis 1 (1855) 370. Andro/xif/oii nnnosus Blaiuo. I'l. Filij). ed. 1 (1837) 

 37; cd. 2 (1845) 25. ed. 3. 1 (1877) 47. non Forsk. /. eiliare F.-Vill. Xov. Ai)p. 

 (1883) 315, non Ketz. /. runosmn Xidal. Plian. Cuming. Pliilip. (1885) 158; 

 Rev. I'l. \'asc. Filip. (188(i) 290; Ibilfe in .bimii. I'.ot. 23 (1885i 210. 



I'u ii.iri'i.NK.s (5(i5 ('iiiniii(i)- Lr/.oN, I'mvince of Hataan. Dinalupijan ( l.")50 

 Merrill) Felu-tiary, 1903: I'lovinee of /ambales. Subie [lliilli,r\ December. I90;;. 

 Sp.-I''il. Trif/o, Tiiiitriijo. 



I ndia. ( liiiia. and Ma lava. 



(3) Ischaemum muticum Liiui. S|). !>l. (1753) ]0I9: Mi.|. Fl. hid. I'.at. 3 

 (1859) 4'.iO: F.-\ill. Nov. .\p|i. ( 1 SS3 ) 315: Hook. f. Fl. Ibit. In. I. 7 (1897) 



