27H (JKOLOOIOAL SUUVEY OV CANADA. 



\;ii. parviflorum, tiiay. 



T. ixirnlloruiii, .NutU Turr. A' (iray V\. II., 100. 

 T. (jliiucum, ,1 Hook. Vl I., ".00. 



liivoliUTO <xl!ibi-on!>. Leavos lanccohilc linear, i;oiuM"ally oiilire, 

 somoliiiios sliirlitlv liaiiy, near tlio base. Viiini(\- ol" Fi)rl VAWvc and 

 west of tlu' ToiK'hwooil Hills. (Macoim.) liclly llivor neai- Fort 

 MrLood and Fossil Couk'o, MilU Hiver liidgo. {.Dauson.) Alon^- llio 

 Saskati'liowan. (^DruDunond.) 



Var. dasycephalum, Ton-. i*y: Gray. 



T. ylauciim, var. «. Hook. Fl. I., 300. 



Ainmogttou ncorzoticnvfolkim, Schrad. DC. Prodi-. \'II., 9<S. 



On dry prairies from Lat. 49° noi-thward to the Arctic Coast. Sas- 

 katchewan and ]n-airies ol" tlie Rocky Mountains to the Arctic Coast. 

 {Jiir/mrdsoii.) Abiiiulant around Morley, J3o\v Jlivor, and eastward to 

 he rvi>ress Hills. (Macoun.) South Kootanie Pass, and common in 

 tlu- mountains and Foot Hills from Ijat. 49° to Bow Eiver ; also on the 

 Chilcoten Kiver, B.C. (JDawsoji.) West of McLeod's I^ake, Lat. 55°, 

 B.C. {Macoun.) 



Var. taraxacifolium, Gray, 



This variety seems to be intermediate between the other two forms, 

 as it has laciniate leaves and a ]»ubesccnt involucre. On diy ^-ravelly 

 soil close to Fort Ellice, Man. {Macoun.) 



(1802.) T. aurantiacum, Hook. 



Maa'orliyncJiua troximoideHjTorr. & Gra.y Fl. IT., 491. Macoun's Cat., 

 No. 1102. 



Alpine prairies of the Rocky Mountains. (Brummond.) 



(130:5.) T. humile, Gray. 



Specimens approaching this species were gathered at Victoi'ia in 

 May, 1875, but referred to T. heterophylhts, Nutt. They ai-e identical 

 with Hall's, No. 317, from Oregon, but quite distinct from T. ChUense 

 No. 143, of Suksdorf, which is now considered a synonym of the former. 



(1.304.) T. laciniatum, Gray. 



Macrorltynchus laciniatus, Torr. & Gray, Fl. II., 492. 



On dry gravelly soil neai- Victoria, Vancouver Island. {Macoun & 

 Fletcher.) Small specimen from Vancouver Island collected by Lyall. 

 {Gray.) 



