PIPER FLORA OF THE STATE OF WASHINGTON. 257 



ALSINE. ClIICKWEED. 



Lowest leaves petiolate. 



Stems pubescent with a line of hairs f leaves ovate 1. A. media. 



Stems glabrous, except at base; leaves shiny, tlie upper linear- 

 lanceolate 2. A. nitens. 



Leaves all sessile. 



Petals retuse or bifid at apex: leaves lanceolate; lierbage gland- 

 ular-pubescent 11. A. jatiiesiana. 



Petals deeply 2-parted: herbage not glandular. 

 Bracts of the inflorescence small, scarious. 

 Pedicels spreading; cyme ditl'use. 



Leaves linear, acute at each end; seeds smooth. . 3. A. lomii folia. 

 Leaves lanceolate, broadest near the base; seeds 



rough 4. A. grartdnea. 



Pedicels erect ; cymes few-flowered 5. A. hngipes. 



Bracts of the inflorescence leafy. 



Leaves lanceolate ; petals small or none 6. A. horealis. 



Leaves ovate or ovate-lanceolate. 



Sepals obtuse, without scarious margins 7. A. obtnsa. 



Sepals acute, with scarious margins. 



Flowers cymose; leaves lance-ovate 8. ^4. calycaniha. 



Flowers solitary, axillary; leaves ovate. 



Herbage glabrous 9. .^4. crispa. 



Herbage finely puberulent 10. ^4. ivashingfoniana. 



1. Alsine media L. Sp. PI. 1: 272. 1753. Cuickweed. 

 SteUaria media Cirill. Char. Comm. 3G. 1784. 



Type locality: European. 



Range: Europe and Asia. Introduced as a**veed in North America. 



Specimens examined: Almota, Piper, May, 1897. 



A common weed, nearly everywhere in the State. 



2. Alsine nitens (Nutt.) Greene, Man. Bay Reg. 33. 1894. 

 SteUaria nitens Nutt.; Torr. & Gr. Fl. 1: 185. 1838. 



Ty'pe locality: "Plains of the Oregon." Collected by Nuttall. 



Range: British Columbia to California and Utah. 



Specimens examined: Seattle, Smith 587; Tacoma, FJett lOU, 23; Nisqually Valley, 

 Allen 145; Hangman Creek, Sandberg d- Leibcrg 43: Pullman, Pljier 1834: Elmer 108; Blue 

 Mountains, Horner 111. 



Zonal distribution: Upper Sonoran and Transition. 



3. Alsine longifolia (Muhl.) Britton, Mem. Torr. Club 5: 1.50. 1894. 

 SteUaria longifolia Muhl. ; Willd. Enum. 479. 1809. 



Type locality: "Habitat in Pennsylvania." 



Range: Alaska to Newfoundland, south to Washington and Kentucky. 



Specimens examined: West Seattle, Piper 593: Marshall Junction, Piper 2258. 



4. Alsine graminea (L.) Britton, Mem. Torr. Club 5: 150. 1894. 

 SteUaria graminea h. Sp. PI. 1: 422. 1753. 



Type locality; European. 



Specimens examined: Seattle, Pz/w 740; Pullman, Piper, September 6, 1899. 

 29418— OH M 17 



