VI. PLANTiE WRIGHTIAN^E. 



RANUNCULACEJi. 



Clematis Pitcheri, Ton: Sr Gray, Fl \. p. 10; a form with the tips of the se- 

 pals prolonged. Valley of the Limpia ; June ; in flower. (830.) 



C. RETICULATA, Walt., var. 1 foliis tenuioribus, junioribus membranaceis. — Bot- 

 tom of the San Pedro ; May. (831.) — No. 38-1 of Lindheiraer's coll. of 1850, New 

 Braunfels, is the same plant, and I think a form of C. reticulata, which is abun- 

 dant in Texas. Perhaps it may prove to be a new species, but I see no character 

 besides its thinner leaves to distinguish it. 



C. VioRNA, var. coccixea. C. coccinca, Engchn. Mss. This was collected former- 

 ly by Mr. Wright about Austin, and towards the Rio Grande. It is No. 383 of 

 Lindheimer's collection of 1S,50, from rocky and shady banks. New Braunfels, 

 named by Eugelmann C. coccinca, n. sp. The leaves are more glaucous, and the 

 thick sepals of a " pure carmine-red, very rarely purplish." But in the ordinaiy 

 C. Viorna they are some shade of red-purple. 



C. LiGUSTiciFOLiA, Nutt. ; Graj/, PI. Feiidl. p. 3. Hills along the Coppermine 

 Creek, New Mexico ; Aug., in flower. (832.) 



Thalictrum Fendleri {Engelm. in PI. Fendl. ^j. o) : dioicum, glabrum ; foliis 

 decompositis petiolatis summisve sessilibus ; petiolulis patentissimis ; foliolis rotun- 

 datis siepius cordatis trilobis parvulis ; scpalis late ovalibus obtusissimis ; filamentis 

 apice vix incrassatis ; antheris mucronatis ; carpellis oblique ovatis complanatis 

 acute marginatis lateribus 4 - .5-nervato-costatis sessilibus vcl in stipitem brevem 

 contractis stigmate styliformi gracili incurvo subulatis. — Hill-sides of Coppermine 

 Creek, Aug. ; male specimens in flower; the female with immature fruit. (833.) — 

 This species is more nearly related to T. dioicum than to T. Cornuti, having nearly 

 the foliage and the broad sepals of the former. It likewise varies, as does T. dioi- 

 cum, with sessile and short-stipitate carpels. In Fendler's plant they are sessile ; 

 but in those of Wright they are raised on a manifest though short stipe. 



Thalictrum Wrightii (sp. nov.) : dioicum, glabrum ; foliis omnibus petiolatis 

 2 - 4-ternatisectis ; foliolis cuneato-obovatis oblongisve trilobis, adultis reticulatis ; 

 floribus paniculatis sparsis ; scpalis subulato-lanceolatis ovaria suba^quantibus ; car- 

 pellis ovatis subcompressis 8-costatis sessilibus stigmate styliformi pauUo longiori- 

 bus. — Mountain ravine at Santa Cruz, Sonora, Mexico ; Sept. (834.) — Stems 12 

 to 18 inches high, slender. Radical and lowest cauline leaves 3 - 4-ternately com- 

 pound ; the upper biternate, and in the loose paniculate inflorescence 3-lolioIate or 

 even simple. Leaflets 4 to 6 lines long, in form much like those of T. Cornuti, 

 glaucescent beneath, at length prominently reticulated. Primary petioles (5 to 12 

 lines long. Panicle slender, simple or sparingly compound. Pedicels filiform, 6 to 

 12 lines long. Staminate flowers not seen. Sepals in the pistillate flowers a line 

 or less in length, greenish, lanceolate or nearly subulate, caducous. Ovaries 8 to 12, 

 flattish, scarcely nerved, rather shorter than the subulate stigma. INIature carpels a 

 line and a half or two lines long, roundish-ovate, compressed, or turgid when fully 



