90 BORRAGINACEiE. 



Var. oalycosa, Gr. Flowers crowded, somewhat capitate: calyx longer. 



12. K. dumetonim, Greene. Almost climbing: papillose-hispid: 2 sepals nnited. 



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



14. K. interinedia, Gr. Nutlets thickly muricate, groove with open basal tear. 

 16. "K, ambigua, Gr. Nutlets minutely muricate, groove widely forked. 



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



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



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



19. K. micrantba, Gr. var. lepida, Gr. Roots red: hispid: corolla 2^ lines long. 



7. PliAGIOBOTHRYS, Fischer & Meyer. 



• Nutlets not on stipe-like attachments: calyx more or less villous toith yelUnoish or ruaty 



hairs, sometimes deciduous above the base {circwmscissile). 



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



Calyx deeply 5-clef t: giving a violet stain to paper 2, 3, 4 



Calyx cleft nearly to the base, 2-3 lines long in fruit not connivent 6 



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



• • Nutlets on stipe-like attachments: hispiduknis 7 



1. P. nifescens, 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. Shastensis, Greene. Similar, with larger flowers and nutlets. Mt. Shasta. 



4. P. Torreyi, Gr. Diffusely procumbent, hispidulous: 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, Toumefort. 

 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, 8, 8 



Prickles barbed to the base: crests of small white corolla small , 4 



1. E. Califomicum, 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. diffusimi, Lehm. Similar corolla 4-9 lines broad: back of nutlet naked. 

 4 S. Qreenei, Gr. Diffuse: nutlets triangular-ovoid: prickles terete. N. CaL 



10. CYNOGLOSSUM, Lehmann. 



1. 0. occidentale, Gr. Hispidulous: upper leaves sessile; lower, spatnlate. 



2. O. grande, Dougl. Soft- villous becoming glabrate: leaves aU petioled. 

 Var. IsBvet Gr. Smooth: corolla smaller, lobes shorter than tube. 



