Pentstemon, Mitch. Scrophulariaceae. 

 " Beard Tongue." 



P. acuminatus, Dougl. North America. Bot. Reg. 

 t. 1285. 



P. fingvstifoliuS) Nutt. See caeruleus. 



P. antirrhinoides, Be nth. California. Bot. Mag. 

 t, 6157. 



P. azureus, Benth. North America. Bot. Mag. 

 t, 7504. 



P. barbatus, Roth. Western United States. 

 P. Barretae, A. Gray. North America. 



P. breviflorus, Lindl. California, &c. Bot. Reg. 

 t. I'.UG. 



P. Bridgesii, A. Gray. North America. 

 P. caeruleus, Nutt. Western United States. 

 P. carinatus, Kellogg. See breviflorus. 



P. centranthifolius, Benth. California. Bot. Mag. 

 t. 5142. 



P. Cobaea, Nutt. Western United States. Bot. Mag. 

 t. 3465. 



P. confertus, Dougl. Rocky Mountains. Bot. Reg. 

 t. 1260. 



Yar. coeruleo-purpureus. 



P. cordifolius, Benth. California. Moore Mag. 1, 32 

 P. cyananthus. Hook. See. glaber var. cyananthus. 



P. diifusus, Dougl. Western North America. Bot. 

 Mag. t. 3645. 



P. Eatoni, Torr. <b Gray. North-western America. 



P. erianthera, Nutt. Sec glaber. 



P. Fendleri, A. Gray. Sec acuminatus. 



