Plante Lindheimeriane. 27 
Amer. Phil. Soc. l. c. p. 159. Ponds near Houston. Sep- 
tember, &c. 
184. Commetyna aneustirouia, Michx. Houston. May. 
185. Xyris Carouiniana, Walt. 6? scaBra: scapo apice 
magis ancipiti, aciebus subtilissime serrulato-scabris. X. sca- 
bra, Engel. MSS. Prairies, west of the Brazos. July. 
186. X. sunsosa, Kunth, enum. IV. p. 11, (ex descr.) 
With the preceding. The North American species still need 
thorough revision. 
187. Hypoxis erecta, @. msTIvaLIs: scapo subunifloro 
folia subeequante ; capsulis subglobosis, (ut in «.) In prairies 
which have been burned over in spring. July. 
188. H. erecta, y. teprocarpa (H. leptocarpa, Engel. 
MSS.) : floribus minoribus; capsulis prismatico-oblongis el- 
lipticisve ; seminibus in singulis loculis uniserialibus 4-6. 
Sandy soil, along rivulets, June — August. 
189. Eustytis purpurEeA. (Nemostylis ? purpurea, Herbert, 
in Bot. Mag. sub. t. 3779.) Open woods and prairies, from 
Houston to the Brazos. June, July. Also, Texas, Drum- 
mond, and Western Louisiana, Dr. Hale. ‘The diagnostic 
characters of this genus and Nemostylis are subjoined. Alo- 
phia, Herb. differs, according to the character,! in having the 
inner divisions of the much more unequal perigonium navicu- 
late, and differently shaped from the outer, in the very short 
filaments, &c., and in being’ tuberiferous instead of bul- 
biferous. 
NEMOSTYLIS, Nutt. Perigonium hexaphyllo-partitum, 
conforme, patens, segmentis fere zequalibus, tubo nullo.  Fila- 
menta distincta, e basi lato subulata, antheris elongato-lineari- 
bus (connectivo angusto) post anthesin spiraliter convolutis 
1 The specimens of several of these Iridaceous plants, of very similar appearance 
in the dried state, appear to have been somewhat confused in the distribution of 
Drummond’s Texan Collection. Under No. 414 of the Third Collection, we have, 
instead of Alophia, specimens of the Herbertia cerulea. Under No. 415, we have 
Nemostylis acuta (geminifiora, Nuit. Ixia acuta, Barton,) as well as Gelasine 
Yexana. In the latter the filaments are certainly monadelphous, and the style has 
two or three short and simple lobes. 
