57 



collec^ting, in Canby's hoihaiium, lia.s ciiablcd us to rliarjK tcri/.c it fi.-^ <juite 

 a dislinct species. This is •'Cluicklusa" of llie Spoi^aiK Indiaiis, noxt to 

 Camnss tlioir luo&t valuable food plant. 



8. P. Watsoni C. .\: R. Uot. (iiizeltc, xiii. 20*.). Two or 

 three inches high, glabrous or pubcrulent, with a short subter- 

 ranean stem from a deep-seated globose or oblong tuber (with 

 clusters of rootlets over its surface) with or without a thick elon- 

 gated root below: leaves bipinnate, the ultimate segments short and 

 linear-oblong: umbel uncciually 1 to -"i-rayed, with involucels 

 of more or less united often tootheJ bractlcts; rays from almost 

 wanting to an inch long: fruit sessile or nearly so, ovate, rough- 

 puberulent, 3 lines long, 1^/^ lines broad, with very narrow wings, 

 and filiform or almost obsolete dorsal and intermediate ribs: oil- 

 tubes (sometimes wanting) very obscure, 3 to iS in the intervals, 

 1 in each rib, and () on the commissural side: seed-face plane. 

 (Fig. 41.) 



High hills and mountains ot Washington Territory, Cimcoe Mts. 

 {Howell, in ISSl), Klickitat county (Howell, 411, 412, 4i:i), Cascade Mts. 

 (Brandeoee, in 1882, no. 820 of Canby's N. Transcontinental survey), near 

 Columbus (SukH(lurf)\ Oregon, near the Dalles (Howell C. in 1882), and 

 Alkali (Howell 830, in 1882). Fl. May and June. 



This species is readily recognized by its 1 to :! clusters of sessile ovate 

 pubei'ulent fruits, and Erigenia-like flowers. 



4, P. Geyeri Watson, Proc. Am. Acad, xiv, 2^-5. Root 

 monilitbrm, with 2 or 8 small rounded tubers: leaves ternate-quin- 

 ate; leaflets linear, 4 to 9 lines long; umbel small, unequally rayed, 

 with involucels of several linear aciuninate bractlets: mature fruit 

 unknown. 



Collet ted by (/(//re (4:)S); also on the Clear Water, Idaho (/^c. J/ c. 

 SiKtldhif/); and probably near Fort Colville. Washington Territory (/>//'(//. 

 in ISGI). 



A good (leal of /'. foriiiosKin has been distributed as }'. (Uitiri. 



"». P. farinosum Gcyer, Hook. Lond. JDUiii. Hot. \ i. 285. 

 Dwarf, from a deep-seated solitary rounded lui>er with freijuent 

 clusters of fine rootlets over its surface: leaves 2 to 8-ternate, with 

 segments more or less lobed, ultimate divisions all linear: umbel 1 

 to 8-rayed, with involucels of few small line:n- bractlets; lays 1 to 2 

 inches long: fruit almost sessile, oblong-elliptical, glabrous, 8 to 4 

 lines long, 2 lines broad, with wings haU" as broad asb()d\:oil- 



