80 HYDROPHTLLACE^. (WATEELEAF FAMILY.) 



Var. tenera, Gr., is a depauperate form; frequently the peduncles only 1 -flowered. 



23. G. tricolor, Benth. A span to a foot or two high, in age diffusely branched; 

 flowers few, in loose, rather short-peduncled clusters; corolla with a very short proper 

 tube and an ample campanulate throat which is pale yellow or orange below, dark pur- 

 ple above; the lilac or violet lobes longer than the stamens. 



24. G. iuconspicua, Dougl. A span to a foot liigh, somewhat \nscid or glandular; 

 corolla violet-purple or bluish, twice or thrice the length of the calyx, but small, the 

 lobes only a line long. It passes by gradation into 



Var. sinuata, Gr., with the tube of the corolla more slender and exserted and the 

 lobes often 2 lines long. 



3. POLEMONIUM. Toum. 



Flowers as in Cilia, § Eugilia, but the corolla short and broad, the stamens somewhat 

 declined, the filaments hairy appendaged at the base. Calyx herbaceous, its divisions 

 and those of the pinnate leaves pointless. 



1. P. c^ruleum, L. (Greek V^vlerian.) Smooth or viscid-pubescent, 2 or 3 ft. 

 high, leafy, usually bearing numerous flowers; corolla an inch or more across, bright blue 

 varying to white; stamens and style exserted. 



Order 39. HYDROPHYLLACEiE. 



Inflorescence usually scorpioid; flowers perfect, regular, 5-androus, the two styles dis- 

 tinct at least at the apex; stigmas terminal, small, capitate. Only in Romanioffia are 

 the stigmas as well as the styles united. Ovary commonly hispid or hirsute, at least at 

 the top. — Mostly herbs, with alternate or rarely opposite leaves and no stipules. 



Tribe 1. HYDROPHYLLB.ZG. Ovary and capsule 1-celled. Style 2-cleft. 

 Corolla almost always convolute in the bud. Herbs. 



Flowers solitary or loosely racemose. 



Calyx with reflexed appendages Nemophila. 1 



Calyx naked at the sinuses Ellisia. 2 



Tribe 2. PHACBLIE.S. Ovary 1-2-celled. Style 1-2-cleft. Corolla imbricated m 

 the bud. Calyx naked at the sinuses. Herbs. 



Corolla not yellow, deciduous Phacelia. 3 



Corolla yellow, persistent Emmenanthe, 4 



Style and stigma entire Romanzoffia. 5 



Tribe 3. NAMEiE. Ovary, capsule, dehiscence, etc., nearly of Phaceliece. Styles 



distinct to the base, stigmas capitate. 

 Low slirubs Eriodictyon. 6 



