CEnotiikua. ONAGRACEiE. 491 



almost leafless branrhes; pedicels pubescent ; tube of the calyx infundibuli- 

 forni ; petals obcoidate, nearly twice the leugth of tiic calj'X-lobes ; capsules 

 short, acute al each end, straight or a little curved, erect or spreading. 



Oregon, near Fort Vancouver and Straits of Da Fuca, Dr. Scouler! Mr. 

 Tobnie! Plains of the Oregon and Rocky Mountains, common, Nutlnll ! — 

 (l) Stem 1-3 feet high, very much branched ; the brandies naked and very 

 slender. Flowers nearly as huge as in K. palustre, pale red. Stigma 

 at length 4-lobed. Capsules abuut an inch long. — A very remarkable spe- 

 cies, wliicii we first received from Dr. Scouler several years since ; but it Ls 

 omitted in Hooker's Flora. Some of our specimens from Mr. Tolmie, 

 kindly comnmnicated by the generous Hooker, are glabrous throughout ; 

 while others have a fine glandular pubescence. 



E. rosmarinifolium (Hnenkc) is not a North American plant. 



E. puhescens (Koi\\), wliich Koch refers to E. parviflorum, Schreb., is given by 

 PresI in the Reliquaj Htenkeanaj as a native of Nootka. His plant is perliaps our 

 E. palustre /3. albiflorum. 



E. divaricatam (Rsif.) (Stem with spreading branches, glabrous ; leaves oppo. 

 site, petiolcd ; petals lanceolate, acute, glabrous, unequally denticulate. Raf. in 

 Desv. Jour. hot. ; DC. I. c.) is too imperfectly characterized for identification ; and 

 if the description be correct as far as it goes, the plant probably belongs to some 

 other genus. 



Subtribe 2. Q^^notherea:. — Calyx deciduous from the summit of tlie ovary 

 after flowering. Seeds naked. — Leaves alternate. The stamens opposite 

 the petals sometimes imperfect. 



3. (ENOTHERA. Linn. ; Juss. gen. p. 319. 



Tube of the calyx prolonged beyond the ovary, deciduous; the segments 4, 

 reflexed. Petals 4, equal, mostly obcordate or obovate, scarcely unguiculate. 

 Stamens 8^ nearly equal, or unequal. Ovary 4-celled, with numerous hori- 

 zontal or ascending ovules in each cell : stigma 4-lobed or capitate. Capsule 

 various in form and texture, 4-valved, many-seeded ; the dissepiments 

 sometimes evanescent : placenta either persistent in the axis, or cohering 

 •vsath the dissepiments. Seeds naked, rarely margined at the chalaza or 

 with a cristate appendage. — Herbs or sometimes suffrutescent plants (chiefly 

 American), with alternate leaves, and axillary or terminal (often nocturnal or 

 vespertine) flowers. 



In the arrangement of this large genus, we have derived much assistance from 

 Mr. Spach's minute Monographia Onagreariim (published in tlie fourtli volume of 

 the Nouvelles Annales du Museum, a synopsis of which appeared in the Annales 

 des Sciences Nuturelles for lS3^i), althougli we do not adopt any of that author's 

 genera, except as sections. The seeds of tE. (Megapterium) Missouriensis, which 

 appears not to have ripened its fruit in Europe, have a curious membranous crest, 

 which, wi'.h the broadly winged capsules, give this species perhaps a better claim to 

 the rank of a genus than Godctia with its minutely bordered chalaza ; but there is 

 no otlier peculiurity, and an approach to this appendage is seen in CE. (Lavauxia) 

 triloba. '1 he genus Sphasrostigma is adopted by excellent botanists ; but if the 

 species with a globose stigma ere to be separated, they should form at least half a 

 dozen genera, and basides, we have a gradual transition to the ordinary stigma 

 of (Eoothera. 



