VI 



PLANTiE WEIGHTIAN^. 



25 



i 



I 



LINACE^. 



LmuM PERENNE, Linn. Valley of the Pecos, Limpio, &c. ; very common. (905.) 

 L. RUPESTRE, Engelm. in Pl. Lindk 2. p. 232, ^ Pl. Wright. p. 26. Crcvices of 

 rocks on the Sabinal. (1336.) 



L. RiGiDUM, Pursh, Fl. 1. j). 210. L. puberulum, seu rigidum var. puberulum, 

 Engelm. in Pl. Wright. p. 25. Stony hills near the Rio Grande above El Paso ; 

 K April. (1337.) — These fine ilowering specimens have the bright yellow petals 



(deeper-colored next the base) half an inch or more in length, and therefore nearly 

 as large as those of L. Berlandieri. From this it is distinguished by its glaucescent 

 appearance, its more subulate erect leaves, and especially by the whole face of the 

 dissepiments being excessively thin and hyaline, — a character pointed out by Dr. 

 Engelmann. Stipular glands are not unfrequently visible. 



L. ARisTATUM, Engelm. in Wisliz. Mem. N. Mex. p. 101; Gray^ Pl Wright. 

 p. 26. Sandy hills on the Rio Grande near EI Paso ; April. (1338.) — Petals 4 or 

 5 lines in length, light yellow. 



OXALIDACE^. 



OxALis DiCHONDR^FOLiA, Gray^ Pl. Wrighf. p. 27. Shady bottoms of the San 

 Pedro, "Western Texas ; May. (906.) 



O. Wrightii, Grag, l. c. Painted Camp, near the head of the Limpio. Also, in 

 1852, on Hainwater Creek and Kock Creek; June. (907.) — One of the forms in 

 the collection of 1852 is dwarf ; the other is fuUy as large as the specimens 

 gathered in 1851. The peduncles, often an inch and a half long, are more com- 

 monly 2-flowered; and one of the pedicels is occasionally bibracteolate in the 

 middle. Mr. Wright informs me that the petals are yellow. 



O. vioLACEA, Linn. Stony hills at the copper mines, New Mexico ; Aug. (908.) 



A small-flowered variety, the same as No. 91 of Fendler's collection, which was 

 erroneously called O. vespertilionis in Pl. Fendl. p. 27. The latter name, being 

 preoccupied by Zuccarini, must be replaced by that of O. Drummondii. 



O. DECAPHYLLA, H. B. K. Nov. Gen. Sf Spec. 5. p. 238. t 468 ; Zucc. Mon. Oxdl. 

 ^ no. 26, 8f Nachtr. Oxal. p. 41. Stony hills at the copper mines, New Mexico ; Aug. 



(909.) — Leaflets 6 to 8, or rarely only 3 in depauperate specimens. The flowers 

 accord with Zuccarinrs character, rather than Kunth's ; for the " purple " flowers 

 are twice the size of those of O. stricta; the filaments are glabrous and shorter than 

 the styles, which are hirsute. There is probably a sexual dimorphism. 



r 



GERANIACEiE. 



Geranium c^spitosum, James; Gray, PL Fendl.p. 25. Hill-sides, Mule Creek 

 and Coppermine Creek, New Mexico ; Aug. (910.) — Varieties with shorter pe- 

 duncles, and mostly \tith larger leaves, than in Fendler's specimens. 



G. .Carolinianum, Linn. Banks of Lake Santa Maria, Chihuahua ; April ; just 



coming into flower.' 



Erodium Texanum, Gra\f, Gen. Bl 2. 1. 150. Hills above El Paso, April. (1339.) 



