456 PROCEEDINGS OP THE ACADEMY OP 



COMPOSIT/E. 



Eupatorium Sabeanum, n. s. Suft'ruticosa, paullum pubescenti ; raniis 

 teretibus, erectis, plurirais ; foliis oppositis, petiolatis, ovatis, acuminatis. 

 ad basi subcuneatis ; involucri squamis imbricatis, oblongo linearis, apice ob- 

 tusis, vel submucronatis ; acheaia oblongae et quinquecostata, glabra; costis 

 albo-sericeis. 



San Saba County. May. 



This species belongs to the section Cylindrocephala of De Candolle. Its 

 leaves are 1} 2 inches long; petioles 4 6 lines in length, 2 4 stipules in the 

 axils; stipules petiolate ovate lanceolate; leaves long acuminate, with margins 

 entire ; rarely some few leaves have distant coarse teeth. 



Bulbostylis (Brickellia) del to ides, s. nov. Fruticosa, ramoso ; ramis 

 teretibus, junioribus pubescentibus ; foliis utrinque glabris, oppositis, crenato- 

 dentatis, obtusis dehoideo-ovatis, petiolatis, trinervis ; petiolis glanduloso- 

 pubescentibus ; floribus corymbosis axillaribus aut terminalibus ; involucri 

 6quamis lineari-oblongis, laxe imbricatis : achenia tereti striato subpiloso. 



Northern Texas. May. 



A branching shrub, 3 4 feet high ; flowers few, small and mostly terminal ; 

 petioles i 1 incn long; leaves 1J 2 inches long and 1^ wide. 



Kuhnia m a c r a n t h r a, s. nov. Herbacea ; caule 8 12 policaris, ramoso ; 

 foliis sessilibus ovato-lanceolatis, puberulo-pubescentibu3; margine integris, 

 vel interupti-dentatis; floribus magnis, purpureis subcorymbosis. 



Northern Texas. May. 



Scales of the involucre loosely imbricated, linear-oblong, the longest nearly 

 equal in length to the flowers of the disk ; leaves about an inch long ; flower- 

 ing stems 1 2 inches below the flowers, destitute of leaves, but furnished with 

 linear bracts aboui i an inch in length. 



Erigeron Brazoense, s. nov. Herbaceum, ramosum, pilosum ; foliis nume- 

 rosis, lato-spathulatis, subruucronatis, caulinis sessilibus vel breve petiolatis, 

 radicalibus petiolatis ; ligulis albis, linearibus, acutis, confertissimis, subuui- 

 serialis, involucrum duplo excedeniibus ; involucri squamis, linearibus, acutis, 

 discum a?quantibus. 



On the waters of the Upper Brazos. May. 



Plant 8 10 inches high ; leaves 1-J 2 iuches long, and the largest about .', 

 an inch wide; radical leaves mostly petioled ; petioles J lj inches long"; 

 whole plant sparingly coated with white hairs, not appressed ; branches nume- 

 rous and erect; coated thickly with leaves to the summit. 



Erigeron (Eurigera) nudiflorum, s. n. Hirsutum pumilum, ramosum ; 

 foliis lineari-oblongis, integris, acutis, confertissimis ; ramis apice longe nudis, 

 monocephalis ; ligulis albis, plurimis, subuniseriatis, involucrum duplo excidenti- 

 bus. acheniis oblongis, glabris, vel parum pilosis ; pappo radii et disci conformi, 

 duplici ; exteriore breve setacea. 



Northern Texas. May. 



Very much branched from the root. Stems erect, 4 6 inches high; leaves 

 numerous near the root and upwards on the stems about 3 inches ; the upper 

 stems, two inches below the flowers, naked; whole plant strigose hirsute, the 

 white hairs not appressed ; flowers about of an inch in diameter ; leaves \ 1 

 inch long and a little more than a line wide. 



Machaeranthera (DieteriaJ gra n d i f 1 o r a, s. nov. Glabra, vel subpubes- 

 cens ; caule ramosissimo ; foliis numerosis, superne lineari-lanceolatis, subam- 

 plexi-caulis, acutis; iuferne pinnato secti->, segmentis plurimis, acutis ; involucri 

 squamis imbricatis 3 4 serialis, lineari-oblongis, abrupte acutis, disco brevi- 

 oribus; pappo rufo setaceo ; acheniis obovatis, sericeis striatis, receptaculum 

 convexum, alveolatum, alveolae margioe lacerse. 



West of Fort Mason. June. 



[Dec. 



