12 PLANTS WRIGHTIAN^. 



VIOLACE^. 



21. loNiDiuM LINEAE.E, TovT. in Ann. Lye. Nat. Hist. New York, 2. p. 168; 

 Torr. Sr Gray, Fl. 1. p. 145 ; Gray, Gen. III. 1. t. 82, &f PI. Lindh. 2. p. 151. For- 

 ma normalis Torreyi, multiceps, humilis ; foliis omnibus angustis acutis, majoribus 

 etiam linearibus vel lanceolatis 2 - 3-pollicaribus ; stipulis plerisque parvulis, in- 

 ferioribus minutis. — Declivities along the San Pedro or Devil's E.iver ; July : in 

 flower and fruit. — The numerous specimens are only a span high, from a ligneous 

 i'oot, with quite narrow and slender leaves, scarcely longer, however, than the upper 

 ones of Lindheimer's No. 344;. They are principally alternate. Marked as this 

 form is, it is too clearly connected with the next to admit of a specific separation. 



22. I. LiNEARE, Torr. ; var. stipulis majusculis ; foliis plerisque linearibus, imis 

 obovatis. — I. stipulaceum, Nutt. Western Texas ; May. 



23. I. LINEARE, Torr. ; var. platyphyllum : magis puberulum ; caulibus erectis 

 sesquipedalibus ; foliis oblongo-lanceolatis 4-6 lin. latis rariter serratis. — Valley 

 of the Limpia or Wild Rose Creek ; Aug. — This appears to be widely different 

 from No. 21, but I cannot regard it as other than the opposite extreme of the same 

 species, which varies greatly as to the foliage. 



ELATINACE^. 



24. Elatine Texana, Hook. Ic. PI. t. 278 (sub "Merimea seu Burgia"); Gray, 



mucronate leaves, the remarkably long stipe, and the conspicuous style ; while the upper bracts seem to 

 be uniformly simple. Seeds the same as in C. Mexicana, 



3. C. OBTUSIFOLIA (Torr. & Frem.) : foliolis cuneato-obovatis obtusissimis integerrimis supra glabris 

 subtus pubescentibus ; bracteis unifoliolatis ; sepalis lacerato-3 - 5-dentatis ; ovario stipite 4-5-tiesbre- 

 viore stylo bis breviore ; capsula .... — Torr. Sf Frem. in Frem. Second Report, p. 311. — Hob. 

 On the American Fork of the Sacramento River, California ; flowering in March, Colonel Fremont. — 

 My only specimen of this species is that of an annual, about a span high, but doubtless much larger when 

 mature. The stem is branched from the base, and glabrous. The leaflets are about half an inch long, 

 and are tipped with a deciduous bristle. Stipules laciniately fimbriate. Calyx much shorter than the 

 corolla. Petals yellow, oblong-lanceolate. Stipe much exserted. Ovary obovate, with apparendy but 

 few (about 6) ovules. Capsule unknown. — This species in its fimbriate stipules and long style resem- 

 bles WisUzenia of Engelmann (in Wislizenus's Report on Neiv Mexico, p. 99, 1848). It was nained 

 when the only Cleomella known to our botanists was the narrow-leaved one described below. Were it not 

 possible that it may prove to be a distinct genus (which can be told only when the fruit is known), I 

 should propose to call it C. Fremontii. 



4. C. ANGUSTiFOLiA : foUolis oblongo-linearibus acutiusculis integerrimis ; bracteis superioribus simpli- 

 cibus ; ovario stylum multoties superante stipite bis terve breviore ; capsula dilatato-rhomboidea acuta ; 

 seminibus transverse rugulosis. — C. Mexicana, Torr. in Ann. Lye. Nat. Hist. New York, 2. p. 167 ; 

 Hook. Ic. 1. t. 28 ; Torr. 4- Gr. Fl. N. Am. 1. p. 121 ; Gray, Gen. Ill 1. p. 174, t. 75, Sr PL Lindh. 

 no. 10 {in Bost. Jour. Nat. Hist. 5, 1845), non DC. — Hab. Western Arkansas, Dr. James. On the 

 Upper Platte, Mr. Beyrich. San Felipe, Texas, Drummond. High prairies west of Houston, Litidheimer. 



[Don's account of Cleomella Mexicana, from original specimens, in the journal above cited, suffices to 

 identify the Candollean species with the Mexican plant gathered by Dr. Halsted. Had not this account 

 been overlooked, the mistake in respect to the Arkansan and Texan plant would have been long since 

 corrected. I have also the true C. Mexicana from Coulter's Mexican collection. A second species, which 

 I do not possess, recorded in Professor Harvey's list as Cleomella Coulteri, n. sp., is probably the C. 

 longipes, characterized above. A. G.] 



