502 HYDROPHYLLACE/E. Hijdrophyllum. 



♦ ♦ Leaves all or all but the lower alternate : flowers in cymes, scorpioid spikes, or racemes, or 

 rarely in the forks of the stem. 



+- Stylo from 2-* left at the apex to 2-parted. 



5. Phacelia. Calyx of 5 similar or slightly dissimilar mostly narrow divisions. Corolla do- 



cidiioiiH, not yidiow. Stamens oijually inserted low down. Flowers clustered, spiked, or 

 racemud. 



6. Emmeuauthe. Corolla yellow or cream-color and scarious-pei-sistent. Otherwise as the 



preceding genus. 



7. Conanthus. Calyx of very narrow and similar divisions. Corolla deciduous, tubular-funnel- 



form : the une(iual stamens unenually inserted on its tube. Flowers solitary in the leafy 

 forks and terminal. 



8. Tricardia. Calyx of 3 outer much enlarging cordate sepals and 2 inner linear ones. 



-I- +- Stylo and even stigma entire. 



9. RomanzofiBa. Calyx of similar ilivisions. Corolla destitute of appendages. Leaves round- 



reuiform and cienate-lobed. Flowers racemed. 



♦ « ♦ Leaves (alternate) all radical : peduncles in their axils 1 -flowered : style 2-cleft at apex. 

 10. Hesperochiron. Corolla campanulate or nearly rotate, deciduous. 



TiuBK HI. NAMK.'E. Ovary (more or less completely 2-celled), capsule, dehiscence, &c., 

 nearly of J'hticdicic. Styles 2, distinct to the base, their tips thickened or stigmas capi- 

 tate. Herbs or shrubs. 



IL Nama. Corolla funiiclform. Capsule membranaceous, 2-valvcd ; valves undivided. Low 



herbs or sullrutesfcnt : leaves entire. 

 12. Eriodictyon. Corolla funnelform or almost campanulate. Capsule crustuccous, splitting 



into 4 equal half-valves. Shrubs : leaves toothed. 



1. HYDROPHYLLUM, Tourn. WAXEaLEAF. 

 Calyx 5-partecl into narrow divisions, nearly unchanged after flowering ; the 

 sinuses in our species entirely without appendages. C<irolla campanulate, 5-lobed ; 

 the lobes oval, convolute in the bud, in the tube a nectariferous grooved appendage 

 opposite each lobe. Filaments and stylo liliform and exsertud beyond the lobes of 

 the corolla : the former bearded witli some long hairs near the middle : anthers 

 linear or oblong, inflexed in the bud. Ovary hispid with stiff straight hairs, 4- 

 ovuled. Capsule tardily 2-valved, 1 - 4-seeded. — Perennials (an annual species 

 in the Atlantic States); with erect and sparingly branching stems from clustered 

 horizontal rootstocks, mostly pinnately parted long-petioled leaves, and white or 

 violet flowers in close or capitate pedunculate cymes. 



A wholly North American genus, of six species, f^MOwing mostly in wooded or shaded places ; two 

 of them peculiar to the Hoi-ky Mountain and Pacific regions and found in California; a third, y'vi. 



H. ViitGiN'icuM, Linn., is common to the Atlantic States and Oregon, and may be looked for 

 on our northern borders. This may readily be known by being comparatively smooth, and with 

 only 3 to 5 divisions to the cauline leaves, which are of ovato general outline. 



1. H. capitatum, Dougl. Only a spau or so high, in tufts, with rather small 

 rootstocks and coarse fleshy-flbrous roots : leaves soft-hirsute or pubescent, and with 

 blade shorter than the petiole, ovato or roundish in general outline, 2 or 3 inches 

 long, pinnately parted or at base divided into 5 or 7 crowded 2 - S-lobed leallets or 

 divisions ; the lobes oblong, obtuse, mucronato : flowers in a close capitate cluster 

 on a very short {)eduncle : calyx very hispid : corolla bluish or violet : anthers ob- 

 long. — ]k'Mth. in I.iiui. Trans, xviii. 273. — In California we have only 



Var. alpinum, AVat.son. Almost steudess, the comparatively open cymes and the 

 petioles of the leaves rising directly out of the ground ; the calyx more white-hairy 

 and less hispid. — Bot. King Exp. 249. 



Sierra Nevada (Plumas Co., Mrs. Pulsifer Ames) to Humboldt Mts., Nevada, Watson, &c. The 

 ordinary form of the species from Utah to Washington Territory. 



