431 



AGROSTIS ATTENUATA Vasey. 



McClatchie, Erythea 2:78. Gabriel. 



Alaska to California. 



A. CAZiIFOSNICA Trin Agrost 2:113. 

 B 2-273 as f..rm? of A. exarata. 

 A. CAHISTA L, Sp PI 62. B 2:^74. 

 Variety AEQUIVAIiVIS Trin in Bong 

 B 2:271 as A. aeauiv- 



A. CKYFTANDRA T, in XY Lye Ann 1: 



151 U8-i>. B 2:268 as Sporobolus cry- 



AGROSTIS DENSIFLORA Vasey. 



Santa Cruz, Cal. (Dr. C. L. Anderson). 

 A. DIECrCU2 T SI3 Vasey. A 1:43 fdr. Ab 

 37 CNH 3-74. 

 A. ELATA Trin, St Pet ac mem VI, 6, ii, 



4J2 



nodes; sheaths inflated, smooth; Ivs 

 5-10 cm Ig, 2-6 mm wide, scab rid above; 

 panicle loosely contracted, 4-10 cm Ig, 

 8-12 mm wide; empty gm nearly equal, 

 obtuse, 1-nerved, scabrous; callus naked; 

 flng gm 1 mm Ig, 5-toothed, glab; palea 

 nearly equaling gm. 



Gram Unifl 205; lo 



Gram 3: t 27. Da 18. B 2:273. 



isofS. stis albicans Buck1 ' Phila ac pr 

 Poiypogon aiopecuroides Bucki, pwia 



ac smuJf 6 mt SS s D Co (H. c. Orcutt) ; Alas- 



ka; N. M.: Colo; Chollas (Or 518 1058- 

 "probably forma asperfolia Vasey ). 

 A. EXIGUA Thurb, in B 2:275 fd. 

 A. GBANDIS Trin Asrost 2:70; St .Pet 



1 C SfaTaS 

 Smith mt, S D Co (H. C. Orcutt). 



Thurb ex Boland, 



' ^ 



., Sp 



1:135. B 2:274. 



San Diego (Or 1173). Mexico. 

 A.VULGASIS With, Arr Brit PI ed 3, 

 I': 13-. B 2:271, 274 (of Bol Cat 34 as 

 A. elata). 



Parish, Erythea 3:59. "Naturalized 

 about San Bernardino, in meadows and 

 by roadsides." 



Tribe CHLOi.'II -EJE. *pkt 0116- 



several-fld in 1-sided spikes or ra- 

 cemes; the racemes digitate or fas- 

 ciculate, rarely solitary; fig gm corn 

 keeled, entire" & unarmed or toothM 



& w j t h j_ 3 straight awns. 



Spkt imbricated in 2 rows forming tmi- 

 lateral ik which are scattered on 



common rachis. Spartina. 



Spikes 2-6. digitate. Cynodon 



Spikes slender, ait & more or less remote 



eptochloa. 



A. I.AXIFZ.ORA Rich, Frankl Voy App 



3. B 2:274 as A. scabra. 



A. 2EICHAUXH Trin, Agrost 2:79; Gram 



164. B 2:273 as A. exarata Trin. 



A. MICBOPHYLLA Steud, Syn 164. B 



11:273 as A. exarata. 



McClatchie, Erythea 2:78. Gabriel. 



Potrero; Wash. Mesas S D Co (Or 1176). 

 A. MJ2TUTIS3IMA Steud, Syn PI Gram 

 171. B 2:269 as Sporobolus ramulosus. 

 A. anrCRCETATA Presl, Rel Haenk 1: 

 238. B 2:272. 



A. MTJTiTICAUIiIS Hook f, Fl Antarct 

 95. Da 19. 

 AGROSTIS MULTICULMIS Vasey. 



Potrero (Or 969). 



3 8 



exarata 



'" 

 , SP P, l:70. B 2: 



Smith mt S D Co (H. C. Orcutt) ; Alas- 

 ka; Siberia;' Tucson; Arizona (Tourney). 

 A. SCABRIU3CTJI.A Buckl, in Phila ac 

 pr 1862 90 B 2 -274 as A. scabra. 



GenusSPABTINA Schreb. 



Per glab grasses with Ig horizontal 

 rtstocks, flat or involute Ivs, and an 

 i n fl o f 1-sided spreading or erect alt 

 sp k; spkt 1-fld, nar, decid, borne in 2 

 rows on rachis articulated on very sh 

 pedicels below gm: gm 3; outer 2 empty, 

 keeled, very unequal, 3d subtending a 

 perfect fl, keeled, equaling or sh'er than 

 i>d: palea oft larger than its gm, 2- 

 nerved: sta 3: sty filiform, elongated; 

 stig filiform, papillose or sh'ly plum- 

 ose: grain free. Cord-grass. 

 S. POI.IOSA Trin, A l:47d. 

 S. GLABBA Muhl, A l:47d. 



Genus BOLTELOLA Lagasca. 

 BOUTELOUA POLYSTAOH YA To ff . 

 Chondrosium polystachyum Bth Bot 



S CD h (0^ 148; 2064, near F t Yuma). Texas 

 BOUTELOUA^^CEMO^A Lag. 



Genus CYNODOH Pers. 



Per, mostly from running rtstocks, 



i A an ^ t ^^ te mfl: ^ spks 

 ' slender: s V*t 1-fld, secund: gm 



rTOrentt 



Sp PI 62. Eu. B 

 2-271 as A alba 

 Ar>-Rrv?>TT! TTT-MTTTQ Vav 



ALiJcvL/o 1 lo lilfJNUlo \asej. 



A. VABIA27S Trin Agrost 2:68; St Pet 



sh ' er than 



hyaline 2-keeled: sta 



3: s ^ distinct: grain free. Bermuda- 



grass. 



CYNODON DACTYLON Pers. 



h 41 rj 1-1 oc -pi -in TT>_ I.-IAA T A r* 



g^V Eu 



pilose; Ivs 25-50 mm Ig, 4-8 mm wide, 



