HYDROPHYLLACER. 87 
24. P. procera, Gr. Leaf-lobes acute: filaments much exserted. 
25. P. Menziesii, Torr. Corolla violet or white, 6 to 10 lines broad. 
26. P. brachyloba, Gr. Corolla small, whitish: stamens not exserted. 
27. BP. Douglasii, Torr, Diffuse: corolla campanulate, 5 to 10 lines broad. 
28. P. Davidsoni, 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, Gr. Style cleft only at apex: stamens unequal, included. 
31. P. bicolor, Torr. Diffuse: racemes loose: corolla-tube yellowish. 
6. EMMENANTHE, Bentham. 
1. E. parviflora, Gr. Very viscid: corolla not exceeding calyx, 
2. E. pendulifiora, Benth. Less viscid: corolla exceeding calyx. 
7. ROMANZOFFIA, Chamisso. 
1, BR. Unalaskensis, Cham. Calyx-lobes little shorter than the corolla, 
2. RK. Sitchensis, 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, Linnezns, 
1. N. Lobbi, Gr. Silky-woolly: leaves entire: flowers nearly sessile, 
A Rothrockii, Gr. Leaves almost pinnatifid: flowers in terminal heads, 
3. N. Parryi, Gr. Cymes scorpioid: leaves linear, unduiate, vilious. 
i) 
4 
10. ERIODICTYON, Bentham, 
i tomentosum, Benth. * Whitened or rusty with dense pubescence. 8. Cal. 
2. E. glutinosum, Benth. Sticky, resinous coated: corolla 6 lines long. Cal 
Bi 
BORRAGINACEE. 
§ 1. Ovary merely 4-lobed: stigma broad, sessile: glabrous: succulent..........+..0. I 
$2 Ovary 4-parted into seed-like nutleta; style conspicuous; stigma small. 
* Nutlets fixed by the base to a flat receptacle, smooth and shining. 
Flowers leafy-bracted: corolla imbricated, yellow: soft-hairy............. coeee B 
Flowers bractless: corolla convolute, blue or white............. 2220 cceeseeees 3 
