PIPER FLORA OF THE STATE OF WASHINGTON. 409 



2. Pachylophus canescens sp. no v. 



Acaulescent or nearly so, cespitose, the whole plant canescent with a fine appressed 

 pubescence; root stout and woody, becoming 30 cm. long or more; leaves rather nuraerpus, 

 pale green, oblanceolate, repandly dentate or subentire, obtuse or acute, each attenuate 

 into a petiole with margins narrower than the broad white midrib; calyx canescent, the 

 tube very narrow, 5 to 6 cm. long, twice the length of the lanceolate attenuate lobes; petals 

 broadly obovate, pink, 2 to 3 cm. long; pods 2 to 3 cm. long, linear-oblong, attenuate into 

 a stout beak, canescent like the leaves. 



This species is distinguishable from the others of the genus only by the character of the 

 pubescence. 



Specimens examined: Washington — Sentinel Bluffs in gravelly soil. Cotton 1345 (type); 

 Priest R&pids, Brandegee 77, July 14, 1903. Oregon — near Harper R&nch, Leiberg 2103; 

 near Westfal! on road to Ontario, Coville 504; without locality, Cusick in 1885. California — 

 Without locality, Vasey in 1880. 



Zonal distribution: Upper Sonoran. 



The type is in the National Herbarium. 



LAVATJXIA. 



1. Lavauxia triloba (Nutt.) Spach, Hist. Veg. 4: 367. 1835. 

 Oenothera triloba Nutt. Journ. Acad. Phila. 2: 118. 1821. 



Type locality: "In the arid and partly denudated prairies of Red River," Arkansas. 

 Range: Washington and Saskatchewan, south to California and Mexico. 

 Specimens examined: Yakima River, /Sufcs<for/' 1703. 



GODETIA. 



Calyx tips free in the bud, the lobes separate in anthesis; stigmas 

 oval, purple; capsules sessile. 



Ovary and capsule villous I. G. quadrivulnera. 



Ovary and capsule puberulent 2. G. tenella. 



Calyx tips united, remaining so in anthesis; capsules mostly pedicelled. 

 Anthers sparsely hairy, large, the terminal portion ste:ile and 



often becoming hooked. 3. 6^. amoena. 



Anthers glabrous, small, fertile to the tips 4. G. caurina. 



1. Godetia quadrivulnera (Dougl.) Spach, Hist. Veg. 4: 389. 1835. 

 Oenothera quadnvulnera Dougl. Bot. Reg. 13: fl. 1119. 1827. 

 Godetia bingensis Suksdorf, Deutsch. Bot. Monatss. 18: 88. 1900. 

 Type locality: "Northwest America." Collected by Douglas. 

 Range: Washington to California in the coast region. 



Specimens examined: Fox Island, Flett 84; Tacoma, Flett 907, 167; Olympia to Gate 

 City, Heller 4050; Steilacoom, Piper in 1885; Suckley in 1885; Bingen, Suksdorf, July 4, 

 1892; June 13, July, 1881; Yelra, Smith 428; Puget Sound, Wilkes Expedition 133. 



Zonal distribution: Humid Transition. 



2. Godetia teneUa (Cav.) Spach; Steud. Nom. ed. 2. 1: 697. 1840. 

 Oenothera tenella Cav. Icon. 4: 66. pi. 396. 1797. 



Type locality: "Habitat prope urbem Talcahuano in Chile." 



Range: Washington to California. Chile. 



Specimens examined: Klickitat County, Suksdorf 2152; Clallam County, Elmer 2567 



3. Godetia amoena (Lehm.) Lilja, Linnaea 15: 265. 1841. , 

 Oenothera amoena Lehm. Ind. Sem. Hort. Hamb. 8. 1821. : 

 Oenothera lindleyi Dougl. Hook. Bot. M&g. 55: pi. 2832. 1828. 

 Godetia vinosa Lindl. Bot. Reg. 22: pi. 1856. 1836. 



Type locality: "Amer[ica] Septentr[ionalis]." 



