364 GERANIACE^. Floerkea. 



-1— -t— Flowers 5 (or exceptionally 6)-raerous : petals broader, usually exceeding the sepals : 

 nutlets about 2 lines long. 



F. Douglasii, Baillon. Glabrous, very spreading, the branches a span to a foot or more 

 loug: divisions of leaves 3 to mostly about 9, from linear and entire to mostly lanceolate 

 and laciniately once or twice cleft into narrow acute lobes : sepals narrow, acute : petals 

 yellow, white, or occasionally roseate near the end, rather narrow : nutlets from smooth to 

 strongly tuberculate. — Hist. PI. v. 20, f. 50-54; Greene, Fl. Francis. 100. Limnanthes 

 Douglasii, R. Br. Loud. & Edinb. Phih Mag. ii. 70; Lindl. Bot. lieg. t. 1673; Hook. Bot. 

 Mag. t. 3554 ; Brew. & Wats. Bot. Calif, i. 95, excl. syn. ; Trelease, 1. c. 85. L. (/randijiorus 

 and L. sulp/iureus of gardens. — Oregon to Southern California. A low form 2 or 3 inches 

 high, with the petals scarcely equalling the rather broad sepals, from Table Rock, Oregon, 

 Howell, 635, is L. pumila, Howell in herb. Tall Californian plants, a foot or more high, 

 often at first somewhat woolly as in F. alba, constitute /"". versicolor, Greene, Erythea, 

 iii. 62. 



F. rosea, Greene. Glabrous, scarcely over a span high : divisions of leaves more linear 

 or filiform, less incised : petals broader, whitish, marked by longitudinal roseate lines : fruit 

 very rough : otherwise like the last. — Fl. Francis. 100. Limnanthes rosea, Hartw. in Benth. 

 PI. Hartw. 302 ; Brew. & Wats. Bot. Calif, ii. 438 ; Fl. Serres, v. 431 b ; Trelease, 1. c. 85. — 

 Northern Ceutral California. 



F. alba, Greene. Low, rather erect and often subcorymbose : young parts and flower buds 

 very white-woolly with long hairs : leaf-segments about 7, narrowly lanceolate, commonly 

 entire except for the lowest pair which are 3-divided, but occasionally pinnatifid witli about 

 5 ultimate segments : sepals relatively broad : petals yellowish white, often roseate or pur- 

 plish at top : nutlets prominently rugose-tuberculate. — Fl. Francis. 100. Limnanthes alba, 

 Hartw. in Benth. PI. Hartw. 301 ; Brew. & Wats. Bot. Calif, i. 95 ; Trelease, 1. c. 84. — 

 Oregon and the Sierras of California. Tall plants, a foot or more high, with the flowers 

 soon almost glabrous, have been collected in California, at Madera, Buchninster, Tunis Mill 

 and lone, Bramiegee, and perhaps represent a state of F. versicolor, Greene, Erythea, ifi. 

 62, which is held to be merely a transiently hairy form of F. Douglasii. 



6. OXALIS, L. Wood Sorrel. ('0|us, sharp, from the acid taste.) — 

 Annual or perennial acid herbs sometimes woody at base, with compound petioled 

 leaves with entire or emarginate leaflets, some species producing cleistogamous 

 flowers at base. — Gen. no. 377 ; Torr. & Gray, Fl. i. 210 ; Gray, Gen. 111. ii. 

 Ill, t. 144; Benth. & Hook. Gen. i. 276; Baill. Hist. PL v. 41 ; Trelease, 

 Mem. Boston Soc. Nat. Hist. iv. 86, t. 11; Reiche in Engl. & Prantl, Nat. 

 Pflanzenf. iii. Ab. 4, 19, — Mainly South American and African, but a few species 

 in the temperate regions of the Old and New World. 



* Caulescent : flowers yellow, sometimes, like the rest of the plant, tinged with red-purple. 



H— Leaves unifoliolate, with free setaceous stipules : flowers homogone ? 



O. dichondraefolia. Gray. A span to a foot high, appressed gray-villous throughout, 

 fruticose at base, the cespitose branches spreading : leaflet round-ovate, wavy-margined, 

 cordate', abruptly mucronate, 6 to 15 lines long, articulated at the summit of the often longer 

 petiole: flowers 6 lines long, solitary on axillary peduncles often exceeding the leaves, seta- 

 ceously bibracteate near the top : sepals auriculately cordate : petals narrow, clawed, about 

 twice as long as the calyx, rounded or mucronulate at apex : capsule round-ovoid, scarcely 

 as long as the sepals ; seeds about 3 in each cell, broad, about 1 line long, with prominent 

 tubercles somewhat ol)liquely confluent. — PI. Wright, i. 27, ii. 25 ; Torr. Bot. Mex. Bound. 

 41 ; Trelease, 1. c. 87, t. 11, f. 1 ; Heller, Contrib. Herb. Franklin & Marshall Coll. i. 54. 

 — Southern and Southwestern Texas. (Mex.) 



-)— -1— Leaves pinnately trifoliolate, exstipulate : flowers heterogone ? 



O. Berlandieri, Tore. About a span high, loosely dingy-villous throughout, suffrutescent 

 at base, the few ascending basal branches rather strictly subcorymbose above : leaflets oblong, 



