510 ONAGRACEiE. CEnothera. 



as the ovary, longer than the lanceolate-oblong segments ; petals obovate, 

 entire, rather shorter than the sHghtly unequal stamens and style ; anthers 

 linear-oblong, fixed near the middle ; stigma subglobose ; capsules cylindri- 

 cal, viscid-pubescent, striate, attenuate above, arcuate-recurved. — JJougl. I 

 in Hook. fi. Bor.-Am. \. p. 213. ffi. lithospermoides, Nvtt.! mss. 



/?. 'pysf;m(ea : smaller ; upper leaves lanceolate, sessile. — (E. pj^gmsea, 

 Dougl. I. c. (tide Hook.) 



Low gravelly hills near tlie branches of Lewis and Clarke's River, lat. 

 46°, and in barren sands near the Utalla River (/?.), Douglas! On the 

 sides of basaltic hills east of Wallawallah, rare, Nuttall ! Aug.-Sept. — 

 Stem 8-10 inches high. Spike 2-3 inches long; the lower bracts resem- 

 bling the leaves, but smaller; the others minute. Tube of the calyx, with 

 the ovary, nearly an inch long. Style about the length of the stamens. 

 Capsules about half an inch long. — The aspect of the plant, as well as the 

 inflorescence, is strikingly like that of a Boragineous plant. 



* * * Perennial : flowers in a dense spike {which is sometimes drooping at the 

 apex), yellow, unchanged in fading : tube of the calyx tubular.infundihuli- 

 form, nearly the length of the ovary : stainens nearly equal, about the length 

 of the petals : anthers oblong, fixed by the middle : capsules subulate, ob- 

 tusely quadrangular, somewhat recurved. 



65. CE, gaur(efiora: glabrous; stem erect, "suffruticose at the base," 

 glandular-puberulent at the summit ; leaves linear-lanceolate, attenuate at 

 each end, entire or somewhat toothed, slightly pubescent when young; 

 flowers (small) numerous, spicate ; tube of the calyx tiibular-infundibuli- 

 form, nearly the length of the linear ovary, as long as the lanceolate seg- 

 inents ; petals obovate, slightly unequal, about the length of the calyx-seg- 

 ments, the nearly equal stamens, and the style ; anthers oblong, fixed by 

 the middle ; stigma subglobose ; capsules subulate from a ratlier broad 

 base, somewhat quadrangular, at length more or less arcuate-recurved.^ 

 Gaura decorticans, Hook. S^'Avfi.! hot. Bcechey, suj)pl. p. 343. 



California, Douglas ! — Stem with a white loose bark, like that of CE. 

 albicaulis. Leaves 1-3 inches long, veinless, except the midrib. Spike 

 dense, obtuse, elongated in fruit : bracts linear or subulate, shorter than the 

 ovary. Flowers, including the ovary, about half an inch long; the calyx 

 yellowish ; the petals (2 lines in length) apparently bright yellow. Style 

 at length a little longer than the stamens. Capsules an inch long, glabrous, 

 with a long attenuate point, dehiscent ; the valves 1-nerved. Seeds nume- 

 rous, linear-oblong. — The fruit appears to have been wanting in the speci- 

 mens which Hooker and Arnott described, although it is nearly mature in 

 one of ours. We have not seen the base of the stem. 



* * * * Annual: flowers (small, often minute) axillary or towards the sminnit of 

 the branches, yellow, unchanged in fading : tube of the calyx usually very 

 short : stamens unequal, shorter than the petals : anthers roundish : capsules 

 usually linear and slender, sometimes subulate, straight or soinewhat contorted. 



56. CE. dentata (Cav.) : slightly pubescent ; stem slender, simple or 

 branched, erect or ascending ; leaves linear or lanceolate-linear, very nar- 

 row, acutely and remotely denticulate, attenuate at the base ; tube of the 

 calyx infundibuliform-obconic, about half the length of the segments, many 

 times shorter than the filitbrm ovary; petals (about 4 lines long) broadly 

 obovate, nearly entire, about twice the length of the style and longer stamens ; 



