226 HYDROPHYLLACKAK 



tale Wats., Bot. King 248 (1871), type loc. Mt. Diablo (summit), Brewer 1176. E. occidentale 

 var. watsonii Gray, Proc. Am. Acad. 10:314 (1875), based on material from "Utah, California," 

 belongs here, at least as to California plants. 



3. H. f endleri Hel. var. albifrons Mcbr. Stems erect, 8 to 20 inches high, re- 

 motely leafy throughout, bearing the peduncled cymes terminally or above the 

 middle ; herbage thinly sof t-puberulent or rarely hirsute ; basal and lower leaves 

 usually somewhat longer than the stems; leaf-blades 2 to 4% (or 6) inches long, 

 pinnate or pinnately divided with mostly 5 or 7 divisions or leaflets, the leaflets 

 ovate, deeply and irregularly incised or toothed, 1 14 to 3 inches long, the basal pair 

 of leaflets often distant from the other leaflets and not exactly opposite ; flowers in 

 usually somewhat compact cymes borne on peduncles 1 to 3 inches long ; calyx-lobes 

 puberulent and bristly-margined; corolla white, 3 to 5 lines long. 



Damp shady places in the mountains, 5000 to 6000 feet : North Coast Ranges 

 from Humboldt Co. to western Siskiyou Co. North to Washington and Idaho. 

 June-July. 



Locs. — Corral Prairie, Trinity Summit, n. Humboldt Co., Tracy 10,602 ; Marble Mt., Siskiyou 

 Co., Butler 1720. 



Kefs. — Hydrophtllum fendlebi Hel., Plant World 1:23 (1897). H. occidentale var. fen- 

 dleri Gray, Proc. Am. Acad. 10:314 (1875), based on spms. from "Colorado and New Mexico." 

 Var. ALBirEONSMcbr.,Contrib. Gray Herb. 49:23 (1917) ; Jepson, Man. 811 (1925). B. albifrons 

 Hel., Bull. Torr. Club 25:267 (1898), type loc. Lake Waha, Nez Perees Co., Ida., Heller 3269. 



4. H. tenuipes Hel. Stems erect, 5 to 18 inches high, remotely leafy through- 

 out, bearing the peduncled cymes terminally or above the middle ; herbage thinly 

 hispidulous, the stems and petioles in addition often thinly or conspicuously 

 retrorse-bristly; basal and lower leaves usually longer than the stems; leaf-blades 

 suborbieular in outline, 4 to 7 inches wide, palmately 3-divided, the divisions 

 approximate, the central division larger, deeply 3-cleft, often ctmeately short- 

 petiolate, the lateral 2-cleft, sessile, all the divisions ovatish or oblong, serrate and 

 incised, 1 to 3 inches long ; petioles 1 to 8 inches long ; flowers in roundish cymes, 

 the cymes only moderately dense, 1 to iy2 inches wide, on peduncles 1 to 5 inches 

 long ; calyx-lobes green and subglabrous but bristly -margined ; corolla dull green 

 or sordid-white, 3 to 4 lines long. 



Rich moist woods, often under Redwoods, along the north coast, 5 to 4500 feet : 

 Mendocino Co. to Del Norte Co. North to Washington. May-June. 



Ecol. note. — On the flats of creek or river bottoms, Hydrophyllum tenuipes often forms circu- 

 lar colonies in Eedwood forest, these circular colonies resulting from propagation by rootstocks. 



Locs. — Fort Bragg; McClellan Mt., near Bridgeville, Tracy 16,545; Dyerville, Humboldt Co., 

 Constance 650 ; Eureka, Tracy 4892 ; North Fork Elk River, Humboldt Co., Tracy 4492 ; Lawrence 

 Creek, s. of Kneelaud, Humboldt Co., Tracy 6690 ; Little Hors-Linto Creek, Trinity Summit, Tracy 

 15,538; Requa, Del Norte Co., Davy 5914; Little Mill Creek, Smith River, Paries 24,040. 



Eefs. — Hydrophtllum tenuipes Hel., Bull. Torr. Club 25:582 (1898), type loc. Montesano, 

 ChehaUs Co., Wash., Heller 3853. H. tenuipes var. viride Jepson, Man. 811 (1925), type loc. Fort 

 Bragg, TV. C. Mathews. 



2. NEMOPHILA Nutt. 



Low annuals. Leaves mostly opposite. Flowers solitary in the axils, the pe- 

 duncles commonly spreading or in age reflexed. Calyx deeply lobed, with a reflexed 

 appendage in each sinus (the appendages rarely obsolete). Corolla white, blue, 

 purple or variegated, basin-shaped or almost rotate to campanulate-tubular, with 

 10 minute internal scales in pairs between the stamens, at base. Stamens included, 

 inserted at or near base of corolla. Style more or less 2-cleft. Capsule 1-celled. 

 Seeds 1 to 25, usually with a deciduous caruncle. — Species 16, North America. 

 (Greek nemos, grove, and phileo, to love.) 



For use in preparation of the accounts of the genera Nemophila, Ellisia and Eucrypta an 

 unusually large amount of field material and field notes was collected or assembled by the author. 

 The greater portion of the specimens used have also been independently named and some exclu- 

 sively named by Lincoln Constance, whose recent monographic work on NemophUa and its allied 

 genera specially fitted him for this critical work. 



