352 PHANEROGAMOUS PLANTS. 



24. BALSAMORHIZA, Hook., Nutt. 



1. BALSAMORHIZA HOOKERI. Nutt. 



Balsamorhiza Hookeri, terebinthacea, & hirsuta, Nutt. in Trans. Am. Phil. Soc. n. 



ser. 7, p. 349 ; Torr. & Gray, Fl. 1. c. 

 Heliopsisf Balsamorhiza & terebinthacea, Hook, Fl. Bor.-Am. 1, p. 310. 



Hab. Between Spipen River and the north branch of the Columbia; 

 the form named B. Hookeri by Nuttall, more silky-hairy than his B. 

 hirsuta, which is just Hooker's Heliopsis? Balsamorhiza. Also, gathered 

 in the same district, the variety with the leaves barely serrate towards 

 the apex, and pectinately or laciniately toothed towards the base, the 

 H ? terebinthacea, Hook, 1. c. 



2. Balsamorhiza sagittata, Nutt. 



Balsamorhiza sagittata & B. helianthoides, Nutt. in Trans. Amer. Phil. Soc. 1. c. 

 Espeletia sagittata & E. helianthoides, Nutt. in Jour. Acad. Philad. 7, p. 38, t. 4 ; 

 Gray, PL Fendl. p. 82. 



Hab. Interior of Oregon j the station not given. 



3. Balsamorhiza deltoidea, Nutt. (Tab. 11.) 



Hab. Nisqually and Port Discovery, Washington Territory. — B. 

 glabrescens, Benth. PL Hartw., p. 317 (no. 1785), is apparently a form 

 of the same species with very entire leaves. 



Plate 11. Balsamorhiza deltoidea. Fig. 1. A ray flower. 2. A 

 disk flower. 3. A detached stamen. 4. Style of a disk flower. The 

 details magnified. 



