378 POAlK.K. 



bliiuing, greoii and purple. Siiikolots slightly tlatti'neil. ti-llowt-ivtl. 

 nu'liillii slii,'litly liuirv. proilucetl bovoiul into ii bristlo. soini'iiuu's 

 bearini; ii rudinn-nt »)f ;i third spikolot; oinpty ^dniui's oval. acwU'. 

 lirst t-r» nun. lonj::. 1-nervod. S'. .iind 5-.'».rt nun. lonjr, It-niTvotl ; 

 lloral ^'hnno (»\al, acute. 4.0-.")..') mm. lonj:, includin;; tlit* ."iliort 

 toetli. obscnroly 5-nervi>d. the upper third hrown-.soariou.s. tlio hrnl 

 awn oxli-ntlinj; 11-5 nun. ln'yoi\d its glunic; palea nearly ;U5 ion*: as 

 its <;lumi'; anthers l.',\ mm. lonj;. 



Nearly allieil to 7'. fi/iinifinii. 



Mexico. rriiKjlc A'W,). on the mountains. 



!i. T. sesquiflorum Triu. liull. Se. Acad. St. I'etersb. I: GO 



(iH;Jti). 



IVrennial; culms 15-'.'') cm. high, and glabrous throu_<:hout. 

 Leat'-bhules of sterile shoots often reaching to the toj)of tlu» painclc, 

 those of the culm shorter, the upper one 1 cm. long. Panicle 

 dense, linear-ohlong, ;> -t cm. long. Spikelets narrow, purple; some 

 of them consisting of four empty glumes, first and second 1-nerveil, 

 third bifid, awned, ;5-nervi'il. fourth '^-nerved; the other spikylets 

 l-','-tlowercd, empty glumes lanceolate, c«)ui|)ressed-keeled, verv 

 nearly ecpnil, (1-7 nun. long, first 1 -nerved, secoiul o-nerved, raeliillsi 

 consistijig of a few short hairs; lloral ghuue thin. ."> mm. long, 'i 

 mm. witle, obscurely 5-nerved, the tips lacerate, awn starting but 

 little below the middle, and reuching 4 mm. above its glume; palea 

 obtuse, lacerate, a little shorter tlum its glume, 1.5 mm. wide. 

 Anthers linear, ',\ mm. long, which is three times tlie length of 

 those in T. siihspicalKiii. collected in the same locality. The plants 

 have mui'li the aspect of tiiose last named. 



Alaska, lliirrinulon with the U. S. Coast Survey. 



Alaska and Kamtchatka. 



10, T. Sandbergii n. sj). 



Panicle pur|>le, lax, llexuose or nodding. 15-:20 cm, long, rays 

 in distant half-whorls of 15-4, the longest 4-(! cm. long, bearing a 

 few spikelets on the outer third, Sjukelets '^-flowered, the hairy 

 pi'dicel nearly 15 mm. long; first glume laiux>olate, 3-4 mm. long. 

 1-nerved, second oval when spread, about 5 mm. long, 3-nerved; 

 lirst lloral glume ellijitioal, acute when spread, with a few very short 



