146 



8. Erj'simum asperum, DC. var. 



(elatum, Nutt.) 



9. Eaphanus sativus, Linn. " In can- 



ons, &c." 



10. Isomeris arborea, Nutt. 



11. Viola pedunculata, var. petalis 2 



supei'ioribus extus prsesertim 

 fusco-purpureis. 



12. Silene Californica, Durancl^ {var. 



of S. laciniata.) 



13. Calandrinia Menziesii, Hook. 



14. Clayton ia perfoliata, Don. 



15. Sidalcea malvfeflora, Gray. 



16. Fremontia Californica, Torr. 



17. Erodium cicutarium, D Her. ' 



18. Frangula Californica, Gray. 



19. Rhus diversiloba, Torr. (f Gr. 



20. .Esculus Californica, Nutt. 



21. Lnpinus microcarpus, Sims. 



22. " bicolor, Lindl. 



23. " leptophyllus, Benth. var. 

 foliolis latioribus. 



24. Hosackia Pursliiana, Benth. 



25. " scoparia, Nutt. 



26. Cercocarpus parvifolius, Nutt. 



27. (Enothera biennis, L. var. 



28. " bistorta, Nutt. ? . 

 ?9. " tenella, Cav. 



29 a. '' rubicunda, Lindl. 



30. Clarkia elegans, Lindl. 



31. Clarkia Xaxtiana (sp. nov.) : foliis linearibus seu 

 lanceolatis ; floribus quasi racemosis ; calycis tubo ore villosis- 

 simo ; petalis cuneatis alte bilobis cum lancinula subulata inter- 

 posita deorsum in unguiculam latam edentatam sensim angusta- 

 tis ; staminibus 8 fertilibus ; stigmatis lobis late ovalibus brevi- 

 bus ; capsula sessili. — An interesting species from its holding an 

 intermediate position between the original Clarkia pulchella and 

 G. {Phoeostoma, Spach.) elegans ; the foliage (which, with the 

 ovaries and flower-buds, is minutely cinereous-puberulent) re- 

 sembling the former, as do the lobed petals, but here the middle 

 lobe is reduced to a mere lacinula, and the broader and shorter 

 claw is toothless ; while the blossoms are racemosely disposed 

 along the simple stem or branches as in C. elegans, in bud 

 strongly drooping. There are no scales at the base of the fila- 

 ments ; but the throat of the short funnel-form tube of the calyx 

 is evenly and densely bearded with villous hairs. Petals purple 

 or pink, often with a deeper-colored spot toward the base of the 

 blade. Capsules rather slender, sessile, or the lowest subsessile. 



32. Zauschneria Californica, Presl. 



33. Epilobium coloratura, Muld. 



34. Mentzelia albicaulis, Dougl. 



35. Megarrliiza Californica, Torr. 



36. Cicuta maculata. L. 



37. Berula angustifolia, Koch. 



38. Edosmia Gairdneri, Nutt. 



39. Peucedanum'iitriculatum, Nutt. 



40. Galium boreale, L. var. 



41. Erigeron Douglasii, Torr. cf Gray. 



42. Balsamorhiza deltoidea, Nutt. 



43. Leptosyne Douglasii, DC. 



44. Helianthus lenticularis, Dougl. 



45. Choenactis glabriuscula, DC var. 



megacephala, Gi'ay, in PI. 

 Whippl. 



46. Burrielia gracilis, D C. 



47. Babia confertiflora, Z>C. 



48. " V/allacei, Graij, in PI. 



Whippl 



49. Monolopia major, DC. 



50. Layia gaillardioides, Hook, cf- Am. 



var. pappo libo; foliis pinuatif- 

 idis. 



I 



