LABIATE. (MINT FAMILY.) 805 



whitened ; the many-flowered whorls dense, crowded with bracts, and usually 

 farming terminal heads or close cymes. Corolla whitish or purplish, the lips 

 m )stly dotted with purple. Varies, like the Mints, with the stamens exserted 

 or included in different flowers. (Name composed of TTVKVOS, dense, and avBepovi 

 a blossom; from the inflorescence.) 



* Calyx scarcely at all Z-lipped, the teeth and bracts awl-shaped and awn-pointed, 

 rigid, naked, as long as the corolla : flowers in rather dense mostly terminal heads : 

 leaves rigid, slightly petioled. 



1. P. arisffatiim, Michx. Minutely hoary-puberulcnt (l-2 high); 

 leaves ovate-ohlong and oblong-lanceolate, acute, sparingly denticulate-serrate 

 (l'-2' long), roundish at the base. Pine barrens, from New Jersey southward. 



Var. liyssopi folium. Leaves narrowly oblong or broadly linear, nearly 

 entire and obtuse. (P. hyssopifolium, Benth.) Virginia and southward. 



* * Calyx %-lipped from the greater union more or less of the 3 upper teeth, which, 

 with the bracts, are subulate and bearded icith some spreading hairs : flowers in 

 dense and compound flattened cymes, which become considerably expanded in fruit : 

 leaves membranaccous, petioled. 



2. P. iiic:\iiuni, Michx. Leaves ovate-oblong, acute, remotely toothed, 

 downy above and mostly hoary with whitish wool underneath, the uppermost whitened 

 both sides ; cymes open ; bracts linear-awl-shaped and, with the calyx-teeth, more 

 or less awn-pointed. Rocky woods and hills, New England to Michigan, and 

 southward. Aug. Plant 2 - 4 high, the taste intermediate between that of 

 Pennyroyal and Spearmint, as in most of the following species. Very variable. 



3. P. Cliliopodioides, Torr. & Gr. Leaves oblong-lanceolate, scarcely 

 toothed, short-petiolcd, not whitened; the upper surface often smooth, the lower 

 as well as the stem downy; cymes contracted; bracts and calyx-teeth short subu- 

 late, the latter nearly one half shorter than the tube. Diy copses around New 

 York. Aug., Sept. Perhaps an extreme state of No. 2. 



# # # Calyx usually almost equally 5-toothed: flowers crowded in loose heads or dense 

 clusters at the end of the branches and in the uppermost axils ; the bracts shorter 

 than the Z-lipped corollas : leaves almost sessile. 



4. P. Torreyi, Benth. Somewhat pubescent; stem strict and nearly 

 simple (2 -3 high) ; leaves thin, linear-lanceolate, tapering to both ends (mostly 

 2' long and 2" -3" wide), nearly entire; the awl-shaped calyx-teeth and bracts 

 canescent. Dry soil, S. New York and New Jersey. Aug. Intermediate in 

 aspect between No. 3 and No. 7. 



5. P. pilosiim, Nutt. More or less downy with long and soft whitish hairs, 

 much branched above ; leaves lanceolate, acute at both ends, or the lower ovate- 

 lanceolate, nearly entire, the floral not whitened; calyx-teeth ovate-lanceolate, 

 acute, and with the bracts hoary-haired. Dry hills and plains, W. Penn., 

 Ohio, to Illinois, and southward in the Alleghanies. July- Sept. A smoother 

 form of this, approaching the next, is, if I mistake not, Brachystemum verticil- 

 latum, Michx. (Mountains of Penn. and southward.) 



6. P. miiticiim, Pers. Minutely hoary throughout, or almost smooth, 

 corymbosely much branched (l-2^ high) ; leaves ovate or broadly ovate-lanceo* 



26* 



