General Key to the Families 35 



TRIBE BORAGINE^: 



I. LAPPULA. (Rivinius.) Moench. 



1. L. floribunda. (Lehm.) Greene. False Forget-me- 



not, 



2. L. diffusa. (Lehm.) Greene. Rock Stickseed. 



3. L. echinata. Gilibert. Burse ed. (Introduced.) 

 II. MYOSOTIS. (Rupp.) L. 



i. M. alpestris. Schmidt. Mountain Forget-me-not. 



III. MERTENSIA. Roth. 



1. M. paniculata. (Ait.) G. Don. Tall Lungwort. 



2. M. oblongifolia. Don. Blue Lungwort. 



IV. LITHOSPERMUM. (Tourn.) L. 



1. L. angusti folium. Michx. Narrow-leaved Puccoon. 



2. L. ruderale. Dougl. Lehm. Hairy Puccoon. 



LX. LABIATE. MINT FAMILY 



Chiefly herbs with square stems; leaves simple, opposite, aro- 

 matic, mostly dotted with small glands containing a volatile oil; 

 flowers irregular, perfect, axillary, chiefly in cymose clusters, these 

 often aggregated in terminal spikes or racemes; fruit four small 

 smooth seed-like nutlets or achenes, each containing a single erect 

 seed. 



TRIBE STACHYE^E 



I. DRACOCEPHALUM. (Tourn.) L. 



i. D. parviflorum. Nutt. Dragon Head. 

 II. PRUNELLA. L. 



i. P. vulgaris. L. Heart-of-the-earth. 



III. STACHYS. (Tourn.) L. 



i. S. palustris. L. Woundwort. 



IV. MONARDA. L. 



i. M. fistulosa. L. Wild Bergamot. 

 V. MENTHA. (Tourn.) L. 



1. M. canadensis. L. Canada Mint. 



2. M. canadensis var. lanata. Piper. Hairy Mint. 





