586 ONAGRACEAE 



Sphaerostiffina epiiobioides Walp. K<p. 2:78 (1843). Clurkia cpilobioides Nels. & Mcbr. Bot. 

 Gnz. 05:60 (1918). Vnr. modesta Jepson. Clarlia modesta Jcpson, Man. 67.3 (1925), type loc. 

 WaJtliam Crook, San Carlos Range, Jcpson 2090. 



13. G. delicata .Vbrams. Campo Godktia. Stems erect, simple or branching, 

 1 to 2 feet liigli; licrbap:e tliinly ])ubenilont or siibjrlabroiis; loaf-blades lanceolate 

 to oblong, remotely or obscurely denticulate, ^/o to 2 inches Ion*,', narrowed to 

 petioles 1 to 5 lines long; flowers few, sessile, remote along the upper portion of 

 the axis or its branches; calyx-tube with a hairy ring at the top; calyx-lobes remain- 

 ing united and turned to one side in anthesis; petals rose-pink, spatulate-obovate, 

 narrowed to a short claw, 4 to 6 lines long; filaments without scales; capsules slen- 

 der, 4-sided, angular, 11 to 14 lines long. 



Wooded slopes, 1000 to 2000 feet : San Diego Co. May. 



Note on relationship. — Godetia delicata approaches very closely Godetia epiiobioides. It 

 resembles Godetia epiiobioides in the narrow leaves and nodding buds, in the sepals which remain 

 united and turned to one side in anthesis, in the hairy (but more conspicuous) ring at the top of 

 the calyx-tube, and in its capsules which are flat-sided and sometimes obviously sulcate. It differs 

 in the spatulate petals which in shape approach those of some species of Clarkia, but this point 

 weighs less when it is remembered that the petals of Godetia epiiobioides var. modesta Jepson 

 are furnished with a distinct although short claw. 



Locs. — Ramona, K. Brandegce; Descanso, K. Brandegee ; betw. Campo and Potrero. 



Refs. — Godetia delicata Abrams, Bull. Torr. Club 32:5.39 (1905), type loc. betw. Campo 

 and Potrero, San Diego Co., Abrams 3710; Jepson, Univ. Cal. Publ. Bot. 2':352 (1907). Clarhia 

 delicata Nels. & Mcbr. Bot. Gaz. 65:60 (1918). 



8. OENOTHERA L. 



Herbs with alternate or basal leaves. Flowers yellow or white, often turning 

 greenish or reddish. Calyx-tube short to extremely elongated, rarely none, mostly 

 deciduous, the lobes 4, reflexed. Petals 4. Stamens 8, equal, or those opposite the 

 petals shorter, mostly versatile, sometimes basifixed. Capsule chartaceous to 

 woody, straight, contorted or spirally coiled, 4-celled, 4-valved, dehiscent. Seeds 

 many, naked. — Species about 90, North and South America, 1 in Tasmania. (Old 

 Greek name for some now unknown plant, from oinos, wine, and thera, hunt or 

 pursuit.) 



Bibliog. — Watson, S., Revision of the extra-trop. N. Am. species of Oenothera (Proe. Am. 

 Acad. 8:573-618, — 1873). Eastwood, A., Notes on some species of Oenothera (Zoe 3 : 248-252, — 

 1892). Small, J. K., Oenothera and its segregates (Bull. Torr. Club 23:167-194,-1896). 

 L6veille, H., Monographic du genre Onothera, 1-4G6, many unnumbered plates (1902-1913). 

 Nelson, A., Sphaerostigma (Bot. Gaz. 40:54-63, — 1905). Davidson, A., Notes on Sphaerostigma 

 (Muhl. 3:105-108,-1907). Bartlett, H. H., Systematic Studies on Oenothera (Rhod. 15:48-53, 

 —1913; 16:33-37,-1914). Brandegee, K., Variation in Oenothera ovata (Univ. Cal. Publ. 

 Bot. 6:41-50, pis. 8-9, — 1914). Munz, P. A., A revision of the subgenus Chylismia of the genus 

 Oenothera (Am. Jour. Bot. 15:223-240, — 1928) ; Revision of N. Am. species of subgenus Sphaero- 

 stigma, genus Oenothera (Bot. Gaz. 85:233-270, — 1928); A revision of the subgenera Taraxia 

 and Eulobus of the genus Oenothera (Am. Jour. Bot. 16:246-257, — 1929) ; The N. Am. species 

 of the subgenera Lavauxia and Megapterium of the genus Oenothera (Am. Jour. Bot. 17:358- 

 370,-1930); The subgenus Anogra of the genus Oenothera (i.e. 18:309-327, — 1931); The 

 subgenus Pachylophig of the genus Oenothera (I.e. 18:728-748, — 1931). 



A. Stigma divided into 4 linear lobes; capsule sessile or nearly so. 



1. Plants with stems bearing leaves and flowers; calyx-tube % to 1^2 inches long. 



Flowers yellow, the buds erect ; stems tall, li/^ to 5 feet high ; seeds in 2 rows in each cell ; biennial. 



— Subgenus Oxagea 1. 0. hooJceri. 



Flowers white, the buds nodding; stems low; capsules linear, smooth; seeds in 1 row in each cell. 

 — Subgenus Anogra. 

 Tips of cal}'x -lobes not free in the bud; pubescence usually spreading; stems sparsely leafy; 



annual 2. 0. trichocalyx. 



Tips of calyx -lobes free in the bud; pubescence appressed; stems very leafy; perennial 



3. 0. calif ornica. 



