« 



90 BORRAGINACE^. 



Var. calycosa, Gr. Flowers crowded, somewhat 'capitate: calyx longer. 



12. K. dumetorum, Greene. Almost climbing: papillose-hispid: 2 sepals united 



13. K. barbigera, Gr. Nutlets gray, very rough, rarely all fertile. 



14. K. intermedia, Gr. Nutlets thickly muricate, groove with open basal scar. 



15. K- ambigua, Gr. Nutlets minutely muricate, groove widely forked. 



16. K. muriculata, Gr. Stout: spikes 2-3-radiate: nutlets triangular-ovate. 



17. K. Jonesii, Gr. Slender: spikes more numerous, paniculate: calyx smaller. 



18. K. naicroineres, Gr. Hispid, diffuse: spikes filiform: flowers minute. 



19. E. micrantlia, Gr. var. lepida, Gr. Roots red: hispid: corolla 2^ lines long. 



7. PLAGIOBOTHRYS, Fischer & Meyer. 



* Nutlets not on stipe-like attachments: calyx more or less villous with yellowish or rusty 



hairs, sometimes deciduous above the base {circumscissile). 



Sepals nearly distinct; in fruit 3 lines long, lax: nutlets broadly ovate 1 



Calyx deeply 5-clef t: giving a violet stain to paper 3, 3, 4 



Calyx cleft nearly to the base, 2-3 lines long in fruit not connivent 5 



Calyx cleft half way, silky, in fruit connivent, soon circumscissile 6 



* * Nutlets on stipe-like attachments: hispiduhus 7 



1. P. rufescens, F. & M. Stems slender from rosulate tuft of radical leaves. 



2. P. tenellus, Gr. Radical leaves rosulate: nutlets 4-lobed or cross-like, shining. 



3. P. Shasteusis, Greene. Similar, with larger flowers and nutlets. Mt. Shasta. 



4. P. Torreyi, Gr. Diffusely procumbent, liispidulous: leaves oblong. 



5. P. canescens, Benth. Villous: spikes, as in the last, often leafy below. 



6. P. nothofulvus, Gr. Rosulate leaves thin: corolla 2 or 3 lines broad. 



7. P. Cooperi, Gr. Diffuse: corolla 2 or 3 lines broad, throat closed. 



8. OMPHALODES, Tournefort. 

 1. O. Howardi, Gr. Silky, silvery: flowers few: corolla 4-5 lines broad. Or. 



9. ECHINOSPERMUM, Lehmann. 



Prickles of the fruit barbed at apex only: calyx in fruit reflexed 1, g, 8 



Prickles barbed to the base: crests of small white corolla small ^ ^ 



1. E. Calif ornicum, Gr. Corolla short-funnelform, blue, 2-6 lines broad. 



2. E. floribundum, Lehm. Corolla rotate, blue or often white, 2-3 lines broad. 



3. E. difFusum, Lehm. Similar corolla 4-9 lines broad: back of nutlet naked. 



4. E. Greenei, Gr. Diffuse: nutlets triangular-ovoid: prickles terete. N. Cal. 



10. CYNOGLOSSUM, Lehmann. 



1. C. occidentale, Gr. Hispidulous: upper leaves sessile; lower, spatalate. 



2. C. grande, Dougl. Soffc-villous becoming glabrate: leaves all petioled. 

 Var. Iseve, Gr. Sinooth: corolla smaller, lobes shorter than tube. 



