PIPER FLORA OF THE STATE OF WASHINGTON. 289 



Kange: Briti.sli Columbia to north California. 



Specimens examined: West Klickitat County, Sulcsdorf 1927, 95, 500, 501, 233; Dar- 

 ling i^Iountains, Flett 1136: Simcoe Mountains, Howell, June, 1S79: Klickitat Hills, Gor- 

 man, April, 1895. 



A variable species. Schulz's subspecies are based entirely on characters of leaf outline, 

 but these seem too variable to rely upon. Field study and large suites of specimens are 

 necessary before the species can be satisfactorily understood. 



2a. Dentaria macrocarpa pulcherrima (Greene) Robinson in Gray, Syn. Fl. 1': 1.54. 

 1895. 



Cardamine pulcherrima Greene, Erythea 1: 148. 1893. 

 Type locality: Near ^losier, Oregon. Collected by Howell. 

 Range: Oregon and Washington. 

 Specimens examined: Klickitat Hills, Iloirell 1408. 



CARDAMINE. 



Leaves all simple. 



Alpine dwarf; leaves ovate or elliptic, entire 1. (,'. bellid.ifolia. 



Sul)alpine, tall; leaves cordate or reniform, sinuate 2. C. lyalin. 



Leaves, or some of them, pinnate. 



Basal leaves simple; cauline 3 to 5-foliolatc. 



Leaf margin entire or merely sinuate 3. C. breweri. 



Leaf margin crenatcly 7 to 9-lobed 4. C. vallicola. 



Basal leaves pinnate. 



Leaves all 3-foliolate, sometimes .5-foliate; leallets coarsely 3 to 



5-tootlied 5. ('. (rii(/iilata. 



Leaves 3 to 9-foliolate. 



Petals 4 mm. long; leaflets 5 to 9, orbicvdar 6. (■. occideritali.s. 



Petals 2 to 4 mm. long; leaflets 3 to 7. 



Flowers subumbcllate 7. C. himtachatica. 



Flowers racemose. 



Capsules 20 to 30-seedcd; leaflets mostly ol)- 



long 8. C pennsylvanica. 



Capsules 8 to 20-seeded; leaflets mostly round- 

 ish 9. C. oligoHperina. 



1. Cardamine beUidifolia L. Sp. PI. 2: 654. 1753. 



Type locality: "Habitat in Alpibus Lapponiae, Helvetiae, Brittaniae." 

 Range: Alaska to California, Montana, and the White Mountains. Europe. ^\sia. 

 Specimens examined: Chiquash Mountains, <S«fo(ZoA/ 2.363. 

 Zonal distribution: Arctic. 



2. Cardamine lyallii S. Wats. Proc. Am. Acad. 22: 466. 1887. 

 Cardamine lyallii pilosa Schulz, Engler's Bot. Jahrb. 32: 438. 1903. 



Type locality: "Banks of the Ashtnola, Cascade Mountains." Collected by Lyall in 

 1860. 



Range: British Columbia to California and Utah. 



Specimens examined: Klickitat River, Flett 1135; banks of the Ashnola, Ca.scade 

 Mountains, Lyall in 1860; Blue Mountains, Piper 2455; Horner in 1897; without locality, 

 Vasey in 1889; Wenache Mountains, Cotton 1642; Elmer 435; Cascade Mountains, ir*7/ys 

 Expedition. 



Zonal distribution: Hudsonian and Canadian. 



Schulz's subspecies pilosa includes forms with more or less pubescence. It seems scarcely 

 worthy of recognition. 



29418—06 u 19 



