PIPER FLORA OF THE STATE OF WASHINGTON. 257 



ALSINE. Chickweed. 



Lowest leaves petiolate. 



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



Stexns glabrous, except at base; leaves shiny, the upper linear- 

 lanceolate 2. A. nitens. 



Ijeaves all sessile. 



Petals retuse or bifid at apex ; leaves lanceolate ; herbage gland- 

 ular-pubescent 11.^. jamesiana. 



Petals deeply 2-parted; herbage not glandular. 

 Bracts of the inflorescence small, scarious. 

 Pedicels spreading; cyme diffuse. 



Leaves linear, acute at each end; seeds smooth. . 3. ^. longifolia. 

 Leaves lanceolate, broadest near the base; seeds 



rough A. A. graminea. 



Pedicels erect ; cymes few-flowered 5. ^. longipes. 



Bracts of the inflorescence leafy. 



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



Leaves ovate or ovate-lanceolate. 



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



Sepals acute, with scarious margins. 



Flowers cymose; leaves lance-ovate 8. ^. calycantha. 



Flowers solitary, axillary; leaves ovate. 



Herbage glabrous 9.^. crispa. 



Herbage finely puberulent 10.-4. washingtoniana. 



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

 Stellaria media Cirill. Char. Comm. 36. 1784. 



Type locality: European. 



Kange: Europe and Asia. Introduced as a weed 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. 

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



Type locality: "Plains of the Oregon." Collected by Nuttall. 



Range: British Columbia to California and Utah. 



Specimens examined: Seattle, Smith 587; Tacoina, Flett 100, 23; Nisqually Valley, 

 AUen 145; Hangman Creek, Sandberg & Leiberg 43; Pullman, Piper 1834; Elmer 108; Blue 

 Mountains, Horner 111. 



Zonal distribution: Upper Sonoran and Transition. 



3. Alsine longifolia (Muhl.) Britton, Mem. Torn Club 6: 150. 1894. 

 Stellaria 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. 

 Stellaria graminea L. Sp. PI. 1 : 422. 1753. 



Type locality; European. 



Specimens examined: Seattle, Piper 740; Pullman, Piper, SejJlember 6, 1899. 

 29418—0(5 M 17 ' 



