152 HYDROPHYLLACEJE. 



24. P. procera, Gr. Leaf -lofces acute: filaments much exserted. 



26. P. Menziesii, Torr. Corolla violet or white, 6 to 10 lines broad. 



26. P. brachyloba, Gr. Corolla small, whitish: stamens not exserted. 



27. P. Douglasii, Torr. Diffuse: corolla campanulate, 5 to 10 lines broad. 



28. P. Davidson!, Gr. Hoary: leaves strigose: pedicels equaling calyx. 



29. P. circinatiformis, Gr. Spikes dense: stamens included: seeds 6 or more. 



30. P. divaricata, Gr. Corolla broadly campanulate, blue, 7 to 10 lines broad. 

 5. Microgenetes, Or. Style deft only at apex: stamens unequal, included. 



31. P. tricolor, Torr. Diffuse: racemes loose: corolla-tube yellowish. 



6. EMMENANTHE, Bentham. 



1. E. parviflora, Gr. Very viscid: corolla not exceeding calyx. 



2. E. penduliflora, Benth. Less viscid: corolla exceeding calyx. 



7. ROMANZOFFIA, Chamisso. 



1. R. Unalaskensis, Cham. Calyx-lobes little shorter than the corolla. 



2. R. Sitcheasis, Bong. Pedicels, funnelform corolla and style longer. 



8. HESPEROCHIRON, Watson. 



1. H. Californicus, Wat. Corolla-lobes shorter than the tube. 



2. H. pumilus, Porter. Corolla nearly rotate, tube bearded within. 



9. NAMA, Linnams. 



1. N. Lobbi, Gr. Silky- woolly: leaves entire: flowers nearly sessile. 



2. N. Rothrockii, Gr. Leaves almost pinnatifid: flowers in terminal heads. 



3. N. Parryi, Gr. Cymes scorpioid: leaves linear, undulate, viilous. 



10. ERIODICTYON, Bentham. 



1. E. tomentosum, Benth. Whitened or rusty with dense pubescence. S. CaL 

 1 E. glutinosum, Benth. Sticky, resinous coated: corolla 6 lines long. CaL 



BORRAGINACE3). 



1. Ovary merely 4-lobed: stigma broad, sessile: glabrous: succulent ....%*....- 1 



2. Ovary 4-parted into seed-like nutlets; style conspicuous; stigma small. 

 * Nutlets fixed by the base to a fiat receptacle* smooth and shining. 



Flowers leaf y-bracted: corolla imbricated, yellow: soft-hairy 8 



Flowers bractleas: corolla convolute, blue or white 8 



