PIPER FLOEA OF THE STATE OF WASHINGTON. 561 



7. Hoorebekia stenophylla (A. Gray). 



A plo pappus stenophyllus A. Gray in Torr. Bot. Wilkes Exped. 347. 1874. 



Stenotus stenophyllus Greene, Erythea 2: 72. 1894. 



Type locality: Spipen [Naches] River and north fork of tlie Columbia River. Col- 

 lected by Pickering and Brackenridge. 



Range: Washington and Idaho to California. 



Specimens examined: Mountains between Ellensburg and Wenache, IFAiietZ 28; Ellens- 

 burg, Piper 2685; North Yakima, Mrs. Steinweg in 1894; near Cleveland, Suksdorf 335; 

 Klickitat County, Howell in 1882; Rattlesnake Mountains, Cotton 340. 



Zonal distribution: Arid Transition and Upper Sonoran. 



8. Hoorebekia greenei mollis (A. Gray)*. 

 Aplo]xippus greenei mollis A. Gray, Syn. Fl. 1^: 135. 1884. 

 AplojHjppus mollis A. Gray, Proc. Am. Acad. 16: 80. 1880. 

 Macronema molle Greene, Erythea 2: 73. 1894. 



Type locality: "Iligli mountains of Union Co , Oregon." Collected by Suksdorf.' 

 Ranoe: Washington and Oregon. 



Specimens examined: Yakima region, Brandeyee 839, 842; Lake Chelan, Gorman 845. 

 * Gorman's plant was mentioned in his paper on the Washington Forest Reserve as 

 Macronema suffj-nticosum Nutt. 



SOLIDAGO. GOLDENKOD. 



Branches of the panicle racemiform 

 Leaves thin; stems erect and tall. 



Heads small, 4 to 5 mm. long, in very dense panicles. 



Bracts of the panicle leaf-like I. S. caurina. 



Bracts of tlie panicle not leaf-like 2. S. elomjata. 



Heads larger, 5 to 7 mm. long in looser panicles 3. S. serotina. 



Leaves thick and firm. 



Involucral bracts thin, acutish 4 5. tolmieana. 



Involucral l)racts firm, obtuse 5, S. missouriensis. 



Branclu^s of the panicle not racemiform. 



Involucral bracts acute; alpine 0. S. corymhosa. 



Involucral bracts obtuse. 



Panicle loose, raceme-like 7. S purshii. 



Panicle dense, branched 8. 6'. ylutinosa. 



1. Solidago caurina Piper, Bull. Torr. Club 28: 40. 1901. 

 Type locality: 'Cascade Mts , Wash., above Lake Chelan." 

 Range; Cascade Mountains of Washington 



Specimens examined: Klickitat County, Suksdorf 30; Horseshoe Basin, Lake and Hull 

 818. 



2. Solidago elongata Nutt Trans Aul Phil Soc. 7: 327. 1840 "" 



Type locality: " Wappatoo Island and the plains of the Oregon." Collected by 

 Nuttall. 



Range: British Columbia to Montana and California. 



Specimens examined. Seattle, Piper 1136, Whatcom County, Suksdorf 974; Tacoma, 

 Flett 67; upper Nisqually Valley, Allen 13; Puyallup, Flett 66; Leavenworth, Savage 4, 

 Yakima County, Henderson 2318, Klickitat County, Suksdorf 30, McCloud Lake, Suks- 

 dorf 974; Fort Vancouver, Douglas; Trout L^e, Flett 1071, Fish Lake, Dunn, July 31, 

 1900; Stevens Pass, Whited 1443; Spokane County, Henderson 2317. 



Zonal distribution: Transition. 



29418—06 M 36 v 



