146 
8. arnt imum asperum, DC. var. 18. Frangula Californica, Gray. 
tum, Nutt.) 19. Rhus aoe rsiloba, Torr. ¢ 
9. Rapin sabeas: Linn. “In caf- 20..£sculus Californica, Nutt. 
ne &e.” 21. Lapis coenscaah ie Sims. 
10. Isomeris arborea, Nutt. 22. r, Lin dl. 
ll. Viola. pedunculata, var. petalis 2 23. lept Se Benth. var. 
. ribus extus preesertim ee latioribus 
o-purpur 4, tereeeas a "Benth. 
12. Silene Calitre, Durand, (var. 25. 
of S. laciniata.)* 6. Cer ocaies 3 panne Nutt. 
13. Calandrinia nea, Hook. 27. Gueters biennis, LZ. var. 
14. Claytonia perfoliata, Don. 28. “ bistorta, Nutt. ? : 
15. Sidalcea malveeflora, Gray. ee es tenella, Cav. 
16. Fremontia Californica, Torr. rubicunda, Lindl. 
17. Erodium cicutarium, L’ Her. 3, ‘tes elegans, Lindl. 
. CLARKIA XANTIANA (sp. mle foliis linearibus seu 
FRO floribus quasi racemosis; calycis tubo ore villosis- 
simo ; petalis cuneatis alte bilobis cum aa subulata inter- 
posita deorsum in unguiculam latam e tam sensim angusta- 
tis; staminibus 8 fertilibus ;  stigmatis es late ovalibus brevi- 
bus; capsula sessili—An interesting species from its holding an 
intermediate position between the original nal Clarkia a pulchella and 
CO. (Pheostoma, see Sue the foliage (which, with the 
ovaries and flower-buds, is minutely reeccreb igs t) re- 
sembling the pane as do the + hea 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 stem or branches as in C. elegans, in bud 
strongly droo There are no scales at the base of the fila- 
ments ; but ae ‘tinsel 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. 
82. Zauschneria Californica, Presi. 44. Helianthus lenticularis, Dougl. 
o3 Epilobium coloratum, Muhi. 45, Cheenactis glabriuscula, DC. var. 
34. Mentzelia albicaulis, Dougl. megacephala, Gray, in Pl. 
35. Megarrhiza Californica, Torr. ey se 
36. Cicuta maculata, L. 6. Burrie! s, DC. 
$7. Berula angustifolia, Koch. z Bahia gente, DC. 
38. Edosmia Gairdneri, Nutt. 48. “ Wallacei, Gray, in Pl.. 
39. Peucedanum utriculatum, Nuit. Whi 
40. Galium boreale, Z. var. 49, Monolopia majo 
r, DC. 
41. Erigeron Douglasii, Torr. f. Gray, 50. Layia eile, Hook. ¢ Arn 
‘Balsamorhiza deltoidea, Nuit. var. pappo albo; foliis pinnatif- 
e Douglasii, DC. idis. 
