N Y M P H ^ E ^, 287 



9. E. rhoiiibipetala, Greene, Bull. Calif. Acad. i. 71 (1885); Gray, 

 Proc. Am. Acad. xxii. 273 (1887). Glaiicous and tubercnlate-scabrous 

 throughout; stemless or the stems stout, depressed, very leafy, the stout 

 4-ansled peduncles little exceeding the subradical leaves: torus sub- 

 cylindrical, with 2 minute approximate scarious margins: petals J^ in. 

 long, rhombic-ovate, fugacious: capsules very large for the plant (3 — 4 

 in. long): seeds large, very distinctly and regularly favose-reticulate. — 

 A very common plant in grain-fields along the eastern foothills of the 

 Vaca Mts. and the Mt. Diablo Range. Feb.— May. 



10. E. Lemnioni, Greene, W. Am. Sc. iii. 157 (1887). Habit of the 

 last, or rather more slender, the scapose i^eduncles longer (6 12 in. high), 

 the whole plant, even to calyx and capsules, almost hoary-pubescent: 

 torus urceolate, 3 — 4 lines long, nearly glabrous, constricted just below 

 the narrow double hyaline border: calyx ovate, long-acuminate: petals 

 orange, about 1 in. long. — Fields near Cholame, San Luis Obispo Co., 

 Mr. tt Mrs. Lemmon. 



11. E. CJespitosa, Benth. Trans. Hort. Soc. 1. c. 408 (1834): E. tenui- 

 folia, Benth. 1. c; Hook. Bot. Mag. t. 412; Greene, Bull. Calif. Acad. 1. c. 

 Very slender, stemless, more or less scabrous or hirsutulous, at least 

 near the base: earliest leaves simple and very narrowly linear, the suc- 

 ceeding ones merely bifid or trifid, the later more compound: scapes 

 3 — 8 in. high: corolla 1 in. broad, rotate-sijreading : seeds more or less 

 densely muricate-squamose and bi;r-like. — Common in the foothills of 

 the Sierra from Butte Co. southward to Fresno. A small but beautiful 

 plant with the best of specific characters; although the very different 

 E. hypec.oides was strangely confused with it by Dr. Gray in his latest 

 dissertation on these plants. 



Oeder XL VI. NYMPH/EE/C. 



Salisbury, in Koenig & Sim's Annals of Botany, ii. 70 (1805). 



Aquatic perennial herbs, often with milky juice. Leaves alternate, 

 peltate or cordate, involute from both margins in the bud, commonly 

 floating when mature, and, like the naked 1-flowered peduncles, arising 

 from a submersed stem or stout horizontal rootstock. Sepals and petals 

 distinct (in our genera hypogynous). Stamens few or many. Carpels 

 distinct, or united and forming a capsular fruit. 



1. NYMPH^A, Theophrastus (Yellow Pond-Lily. Spattekdock). 

 Eootstocks stout, creeping in the muddy beds of lakes or sluggish streams. 

 Leaves large, leathery, cordate. Sepals 6 — 12, imbricated, rounded and 

 concave, yellowish or reddish within. Petals and stamens numerous, 



