No. 93. 

 FESTUCA VIRIDULA Vasoy sp. nov. 



ri(uil iM'ieiinial. tiil'tcil, with coaisc, woully loot.s. 



Culms dt'ct, slfiider, smootli, thickeiu'd :it tlic ba.si', - to i IV-ut tall. 



IjeavcH from the base numerous, closely iuvolute, almost filiform, reachiii}; nearly 

 to the panicle: leaves of the culm usually 3: sheaths striate, smooth, half open al»ovc. 

 .shorter thau the long iutcrnodcs ; blades mostly Hat, scabrid above, 1 to J lines wide, 

 3 to inches long; ligule almost obsolete. 



/H/7«»T.sc<Hce a loose, 0])en, erect or slightly nodding ])anicle, 4 to (> inches long; 

 rays mostly in twos below and single above, at the 4 to node?, 'hispid like tiie axis, 

 angular or flattened, 3 inches long or less, the longer onss Sometimes subdivided and 

 bearing 2 to 4 siiikelcts near the extremities, the upper oi:es bearing but 1 spikelet, 

 or rarely simple throughout. 



Spikclcfs compressed, 3- to 6-flowered, 5 to 6 lines long; first empty glume ovate, 

 acute, 1 -nerved, 1\ lines long; second empty glume broadly lanceolate, subacute, 

 britaflly scarious-inargined, 3-nerved below, 2 lines long; tl(»ral glume hnu r ol)loiig, 

 denti(!ulate below the acute or more often nuu-nmate ajiex, minutely i)ulierulenf. 

 .5-uerved, 3 to 31 lines long; i)alet oblong, obtuse, minutely ciliate on the keels 

 above, about ecpialing the glume; internode of rachilla i^ line long. 



Plate XCIII; n, sjukelet; />, tirst empty glumf; c, second empty glume ;</, floral 

 glume, dor.sal ^iew; e, palet, ventral view, not oiiened; /, i>auicle of one of Bolander's 

 specimens. 



California. Dr. Thurber's description in Wats. Bot. ("al. ii. 318 was erroneous 

 in naming this grass FcMuca r/»v(c////»ifl after the Antai-ctic siiecies of Hooker, as I 

 have verified by examination of original specimens in the Kcw herbarium. 1 have 

 therefore named it F. riridultt. 



