312 PHANEROGAMOUS PLANTS. 



cently collected by E. Hall in Oregon.] There are usually but two 

 cauline leaves. The petals are deeply pinnatifid, with five pairs of 

 filiform distant lobes. Stamens shorter than the lobes of the calyx. 

 Capsule opening at the summit very soon after the fertilization of the 

 ovules. 



2. MlTELLA PENTANDRA, Hooh. 



Hab. Oregon ; the particular station not recorded, but probably on 

 the Columbia River. 



8. TIARELLA, Linn, 



1. TlARELLA TRIFOLIATA, Linn. 



Hab. Washington Territory and Oregon, from the seacoast to the 

 Cascade Mountains; frequent in fertile woods. — The cauline leaves 

 are sometimes undivided, or only obscurely three-lobed. 



9. CHRYSOSPLENIUM, Tourn. 



1. Chrysosplenium glechom^efolium, Mitt, in Torr. & Gray. 



Hab. Nisqually, Puget Sound. — Differs from C. Americanum of the 

 Atlantic States in the numerous distinct teeth of the leaves, but more 

 essentially in the smooth globular seeds. 



10. PHILADELPHUS, Linn. 

 1. Philadelphia Lewisti, Pursh. 



Philadelphus Lewisii, Pursh. Fl. 1, p. 329; Hook. Fl. Bor.-Am. 1, p. 220 ; Torr. & 



Gray, Fl. 1, p. 595. 

 P. Gordonianus, Lindl. Bot. Reg. (Misc. 1838, No. 23) & Ser. 2, t, 32. 

 P. Calif ornicus, Benth. PI. Hartw. p. 309. 



Hab. Puget Sound, and interior of Washington Territory and 

 Oregon, extending into California ; abundant along rivers ; growing 



