• 



• 



J 



1* 



70 



PLA^^T^ WRIGHTIAN^. 



y. 



the Ilookerian lierbarium fully confirms. No. 176 of Geyer's Oregon collection, 

 referred by Hooker to GE. pallida (in Lond. Jour. Bot. 6. p. 222), is exactly the same 

 as No. 224 of Fendler. These forms run insensibly into those with longer, lance- 

 olatc or Hnear leaves, either repand-dentate or nearly entire, very minutely pubes- 



d with very smooth and white stems, — the GE. albicaulis, Nutt, Hook. Fl 



Bor.-Am., Src. Sometimes tV plant attains the height of four feet, according to 



Geyer, and is very bushy. CE. pallida, Dou^l, judging frora Douglas's own speci 

 mcns, and the figure in the Eotanical Register (t. 1142), difFers from the narrow- 

 leavcd, true (E. albicaulis, Nutt. only in its smoothness, losing nearly all trace of the 

 fine pubescencc ; while Nuttall, Tolmie, and others, have under this name a bushy 

 form of the plant, with broader and shorter leaves, the very smooth surface often 

 beset with a few hairs. Ql leptophylla, Nutt,, is the same as the last, very bushy, 

 and with crowded, small leaves on the branches ; in Burke's Oregon collection we 

 have the same thing, but almost as cinereous-pubescent as the specimens of Wright 

 with which this account began, and the leaves, though narrow^er, are as strongly 

 toothed. This brings us round to the CE. pinnatifida, Nutt., the CE. albicaulis, 

 Pursh (of which the original specimens of Bradbury are the same as NuttalVs, and 



Geyer's No. 37) ; which begins to flower when 



four inches high 



6 



but usually continues through the season; sometimes bearing pinnatifid leaves, 

 such as Fendler's No. 223, and sometimes with barely toothed or nearly entire 

 leaves, as in Fendler's No. 224. Between these two, Wrighfs No. 191, character- 

 izcd above, is exactly intermediate. 



11) 2. CE. srECiosA, Ntitt. ; var. foliis lanceolatis subintegerrimis ; flore mmore 

 Ilills along the Lcona ; June. This species is exceedingly variable in foli; 



193. CE. Spachiana, Torr. 8f Grai/, Fl. 1. p. 498. Blennoderma Drummondii, 

 Spach, Monogr. Onagr. addend. p. 87. (Enothera Drummondii, Walp. Rep. 2. p. 85, 

 non IIooJc. Near Austin, Texas : also gathered on the Ilio Brazos by Lindheimer. 



194. CE. (Megapterium) Missouriensis, Sims, Bot. Mag. t. 1592; Gray, Pl. 



Lindh. 2. p. 188 (var. a, the narrow-leaved form). Gravelly banks of the Nue- 

 ces ; June.* 



(E. (Lavauxia) triloba, Nutt. ; Hook. Bot. Mag. t. 2566; Grai/, Pl. Lindh. 

 % p. 189. Near Austin, Texas. — Biennial. The dehiscence is loculicidal, and I 



never also septicidal, as I stated in the Flora of North America. — Although 

 with a more crustaceous or lignescent pod, with small and even wings, and a truly 

 perennial caudex, I consider the foUowing to form a second species of this section. 



(E. (Lavauxia) BRACHTfCARPA (sp. uov.) : acaulesceus, pube brevi cinerea ; 



think 



CE 



Bot. 6. p. 221. The latter is only found in the low country of Texas. — CE 



(E 



ered by Wislizenus, at Eock Creek, New Mexico, — The speclmens of CE. heterantha, Nutt 



It was also gath- 



ijid 



(E. triloba. One of Burke's 



specimens in the Hookerian herbarium has ripe capsuTes : these are ovoid-oblong, barely acute, bearing 

 thc persistent remains of the whole calyx, smooth and even, the valves with a slightly prominent stnooth 

 medial rib, Seeds ovoid, reticulate-pitted under a lens, with a slender and inappendiculate rhaphe. 



