94 PROCEEDINGS OF THE ACADEMY OF 



Branches of the panicle mostly solitary, with spikes 3 4 lines distant from 

 their hases to their summits ; axils at the base of the rays pubescent ; pedi- 

 cels about a line in length ; spikes 3 4 lines long and two lines wide, loosely 

 flowered ; intervals on the rachis, between the branches, 1 2 lines long. 



Uralepis (Tricuspis) p i 1 o s a, s. n. Radice fibrosa csespitifera ; culmis 

 erectis (6 12-policaribus) basi numerosis glabris ; vaginis internodio breviori- 

 bus faucibus pilosis ; ligulis nullis aut villosis ; foliis basi plurimis striatulis 

 marginibus albis, 2 4-policaribus 1 2 lin. latis ; panicula coarctata subcapi- 

 tata ; radiis solitariis alternatis 2 4-spicatis angulatis scabris ; spiculis lato- 

 ovatis distichis 8 12-fioris ; glumis subsequalibus ovatis acutis carinatis : 

 valvula inferiore 3-nervia basi et margine cihata neuris viridescentibus caeteris 

 albido-meinbranaceis, apice 3-dentata, medio dente exserto cuspidato ; valvula 

 interiore apice integerrima subobtusa. 



Middle Texas. 



Dry hill sides, growing in tufts ; spikes about .} an inch long and 4 lines 

 broad; pedicels filiform, 2 3-spiked ; panicle 1 1 inch long and f of an 

 inch wide, compressed and greenish white ; hairs of the valves numerous, 

 white, 34 lines long ; ligules none, unless the hairs at the mouth of the 

 sheath be considered as such. The two lateral nerves of the lower valve are 

 on or near its margins. 



Uralepis (Tricuspis) poseoides, s. n. Culmo tereti glabro (1 2 pedali) 

 erecto ; vaginis glabris internodis longioribus ; ligula membranacea ovata 

 integra 2 lin. longa ; foliis glabris 2 5 policaribns 1 2 lin. latis ; pani- 

 cula terminali patente 3 4-policari, 4 6 lin. latis ; radiis 2 3-nis erectis 

 basi nudis compositis parum scabrosis angulatis ; glumis subsequalibus acutis 

 glabris aut parum scabris spicula J brevioribus ; spiculis ovatis teretibus 

 acutis 4 5-floris ; valvula inferiore ovata infra mediam villosa apice breviter 

 3-dentata, dentibus lateralibus obtusis, medio dente brevi-cuspidato ; valvula 

 superiore bicarinata, carinis breviter ciliatis. 



New Mexico. Fendler, 932. 



Internodes of the rachis \ 1 inch long ; lower rays about 2 inches long, 

 and the lower half naked ; the upper rays are \ \ an inch long, with spikes 

 on short pedicels from the base to the summit. 



Uralepis (Tricuspis) densiflora, s. n. Radice fibrosa, culmo erecto ri- 

 gido simplici glabro ; vaginis glabris ore pilosis ; ligulis setaceis ; foliis planis 

 aut convolutis 10 12 policaribus 2 3 lin. latis, radicalibus 15 18-policari 

 panicula elongata stricta 6 7-policari 4 6 lin. lata ; ramis solitariis glabris 

 dense-spicatis 6 12 lin. longis ; spiculis 5 7-floris lato-ovatis ; glumis sub- 

 squalibus glabris carinatis acutis lateralibus membranaceis carinis viride- 

 scentibus ; superior! apice bifida breve-aristata ; inferiore integra basi nuda ; 

 valvula inferiore margine et dorso dense ciliata apice 3 5-denticulata ; dente 

 medio breviter cuspidato. 



Middle Texas. 



Branches erect and appressed ; spikes about 3 Hues long and nearly the 

 same width, numerous, with close diverging florets, the two upper forming 

 an open angle at the top ; intervals on the rachis between the branchlets 6 

 lines to one inch long. 



Uralepis (Tricuspis) composita, s. n. Radice fibrosa; culmo erecto 

 glabro rigido 34 pedali ad nodos ramoso ; ramis erectis strictis ; vaginis 

 glabris ; ligulis S lin. longis apice fissis ; foliis glabris planis 8 12-poli- 

 caribus 34 lin. latis ; panicula 8 12-policari ; ramis solitariis aut geminis 

 erectis 3 4-policaribus dense spicatis glabris ; spiculis oblongo-ovatis 7 9- 

 floris breviter pedicellatis ; glumis insequalibus carinatis acutis dorso parum 

 scabris ; valvula inferiore basi et margine dense ciliata, superne glabra apice 

 tridenta, medio dente breve-aristato. 



New Mexico. Dr. Woodhouse. 



[Feb. 



