I 



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VI. 



PLAKT^ WRIGHTIAN^. 



7 



RANUNCULACEJi:. 



Clematis Pitcheri, Torr. 8f Gray, Fl 1. ;?. 10; a form with the tips of thc sc- 

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



C. RETicuLATA, Wolt^ var. ? foliis tenuioribus, junioribus membranaceis. 



Bot- 

 tom of the Sep Pedro ; May. (83 L) — No. 384 of Lindheimcr 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. coccinea. C. coccinea, Engelm. Mss. This was coUected forraer- 

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

 Lindheimer's collection of 1850, from roclvy and shady banks, New Braunfels, 

 named by Engelmann C. coccinea, n. sp. The leaves are more glaucous, and the 

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

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



C. LiGUSTiciFOLiA, Nutt. ,* Gru}/, PL Fendl p. 3. Hills along the Coppermlne 



Creek, New Mexico ; Aug., in flower. 



(832.) 



acute marginatis lateribus A 



'P^ 



Thalictrum Fendleri {Engelm. %n PL Fendl p. 5) : dioicum, glabrum ; foliis 

 decompositis petiolatis summisve sessilibus ; petiolulis patentissimis ; foliolis rotun- 

 datis ssepius cordatis trilobis parvulis ; sepalis late ovalibus obtusissimis ; filamentis 

 apice vix incrassatis; antheris mucronatis; carpellis oblique ovatls complanatis 



5-nervato-costatis sessilibus vel in stipitem brcvem 

 coritractis stigmate stjiiformi gi^g-cili incurvo subulatis. — Hill-sides of Coppermine 

 Creek, Aug. ; male specimens in flower; tlie 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 varics, 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 Wrightit (sp. nov.) : dioicum, glabrum ; foliis omnibus petiolatis 

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

 iloribus paniculatis sparsis ; sepalis subulato-lanceolatis ovaria subacquantibus; car- 

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

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

 to 18 inches high, slender. Eadical and lowest cauline leaves 3 - 4-temateIy com- 

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

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

 glaucescent beneath, at lengtli prominently reticulated. Primary petioles 6 to 12 

 lines long. Panicle slender, simple or sparingly compound. Pediccls 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. Mature carpels a 

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



Q.?j^ 



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