PIPER FLORA OF THE STATE OF WASHINGTON. 445 



DODECATHEON. Shooting star. 



Capsule dehiscing by valves from the apex. 



Filaments united into a yellow tube half as long as the 

 anthers. 



Plant glabrous 1. D. vulgare. '■■ 



Plant puberulent 2. D. puherulum. 



Filaments free. 



Flowers white; leaves dentate 3. D. dentatum. 



Flowers purple; leaves entire 4. D. campestre. 



Capsule circumscissile; filaments free or nearly so, black. 



Flowers normally tetramerous 5. D. tetranJrum. 



Flowers normally pentamerous. 



Herbage viscid-puberulent 6. D. viscidum. 



Herbage glabrous. 

 Capsules ovate. 



Leaves broadly elliptic to obovate 7. D. lutifolium. 



Leaves oblong-lanceolate, crenate 9. D. jeffreyi. 



Capsules cylindric. 



Leaves spatulate-oblong, obtuse 8. D. conjugens. 



Leaves lanceolate, acute 8a. D. conjugens leptophyllum. 



1. Dodecatheon vulgare (Hook.) 



Bodecatheon integrifolium Michx. err. det. Hook. Fl. Bor. Am. 2: 118. 1838. 



Dodecatheon integrifolium vulgare Hook. 1. c. 



Dodecatheon meadia pauciflorum Durand, PI. Pratt. 95. 1855. 



Dodecatheon pauciflorum Greene, Pittonia 2: 72. 1890. 



Type locality: "Woody country of the Hudson's Bay territories to Carlton House 

 Fort, and in prairies of the Rocky Mountains." 



Range: Washington to Saskatchewan and New Mexico. 



Specimens examined: Coupeville, Gardner 201; Admiralty Head, Piper, May, 1893; 

 Orcas Island, Lj/aZHn 1859; Pullman, Ptper 1730; Elmer 174; Toppenish, Cotton 1137. 



Zonal distribution: Transition. 



2. Dodecatheon puberulum (Nutt.) 



Dodecatheon meadia puherula Nutt. Journ. Acad. Phila. 7: 48. 1834. 



Dodecatheon cusiclcii Greene, Pittonia 2: 73. 1890. 



Dodecatheon puberulentum Heller, Bull. Torr. Club 24: 311. 1897. 



Type locality: "Near the borders of Flathead river." 



Range: British Columbia to Oregon and Idaho. 



Specimens examined: Rock Lake, Sandherg & Leiherg, May, 1893; Pasco, Hindshaw 5; 

 Spangle, Piper, May 24, 1898; Spokane, Nelson 2880; Piper, May 16, 1896; Waitsburg, 

 Horner 117; Kamiak Butte, Moore, June 4, 1893; Pullman, Piper 1814, 1730; Elmer 174; 

 Almota, Piper 1793; White Salmon, Suksdorf 280; Wenache, Whiied 1018; Rattlesnake 

 Mountains, Cotton 357. 



Zonal distribution: Arid Transition. 



The types of meadia puherula and puberulentum are identical, the whole plant excepting 

 the blades being puberulent. The type of cusicTcii has the whole herbage puberulent, but 

 otherwise is the same. Both forms occur together and thus the difference seems of no value. 



3. Dodecatheon dentatum Hook. Fl. Bor. Am. 2: 119. 1838. 

 Dodecatheon meadia latilobum A. Gray, Syn. Fl. 2 *: 58. 1878. 

 Type locality: "N. W. interior." Collected by Douglas. 

 Range: British Columbia to Utah. 



Specimens examined: Wenache Mountains, fi'Zmer 438 ; Brandegee 956; Cascade Moun- 

 tains, latitude 49°, Lyall in 1860; Icicle Creek, Sandherg & Leiherg 558; without locality, 

 Fasey in 1889; Cape Horn, Piper 4974. 



