1918] NELSON & MACBRIDE—WESTERN PLANTS 61 
Gray’ to this species, but this is an error. LinpLEy’s description 
of G. grandiflora reads “fructu lineari 4-sulcato tereti pubescenti.” 
This description accords perfectly with the fruit of all collections 
we have seen. The capsules of GrAy’s species, on the other hand, 
are far from linear, being thick and short, only 2 cm. long. 
JEPson’s description (Joc. cit. 347, 348) of G. grandiflora applies 
rather to this species, and the specimens cited by him are referable 
here. In the following outline of the northwestern members of the 
genus Clarkia we have not cited specimens of the well known species. 
woven Whee Wiwed a ee 1. C. pulchella 
Petals entire or at least not lobed, sessile, or short clawed 
Stigmas linear; calyx lobes united and turned to one side in anthesis; cap- 
sules pedicelled or sessile 
Anthers 4-8 mm. long, more or less hooked or curved after dehiscence 
Buds usually erect; ‘capsules sessile or subsessile, short ego teretish 
. amoena 
Buds nodding; capsules long pedicelled and long beaked, S-ribbed 
3. C. arcuata 
Anthers 3 mm. long, fertile to the tip, not becoming curved... 4. C. caurina 
Stigmas short and broad; calyx lobes becoming free (except in no. 7); cap- 
sules sessile : 
Capsules terete or nearly so and not prominently ribbed; flowers spicately 
red 
scatte 
Leaves ‘Sone PO OWELO ee i ee 5. C. rhomboidea 
Leaves linea 
Style only ‘hall as long as stamens; ovary densely rw gree 
. C. Romanzovii 
Style nearly as long as stamens; ovary slightly per 
. C. gracilis 
Capsules distinctly 4-sided or etenwiied ribbed; flowers fencer’ in no. 8) 
in compact spikes or dense cluster. 
Flowers scattered, the spikes he long; petals 5-12 mm. long 
8. C. quadrivulnera 
Flowers in dense clusters or if not the petals much larger - 
Stems erect, not flattened 
Capsules pubescent; petals 1-3.5 cm. long 
Style as long as or longer than the stamens; capsules puberulent 
. C. viminea 
~~ — than the long stamens; capsules usually shaggy- 
COs ee ue uk ee ee ee . purpurea 
casates © yokcalle glabrous; petals less than 1.5 cm. gat 
II. C. Arnottit 
Stems decumbent-ascending, flattened above... .... 12. C. decumbens 
* Clarkia Whitneyi (Gray), n. comb.—Oenothera Whitneyi Gray, Proc. Amer. 
Acad. 7:340, 400. 1868. 
