LABIAtAE (MINT FAMILY) 699 



* * Stem-leaves greatly reduced upward, the inflorescences long-pedunculate. 



?. P. denticulita (Alt.) Britton. Slender, simple, or the inflorescence 

 branched, 0.6-1.2 dm. high ; leaves thick, pale green, from crenate-dentate to 

 serrate ; spikes solitary or in large plants several and paniculately disposed, 

 rather loose ; corolla 2.5-3.5 cm. long. (P. virginiana, var. Gray.) — Prairies, 

 river-banks, etc., Va. to 111., Kan., and southw. June-Aug. 



4. P. intermedia (Nutt.) Engelm. & Gray. Slender, 3-16 dm. high, remotely 

 leaved ; leaves linear-lanceolate, repand-denticulate ; rhachis filiform, ratlier 

 remotely flowered; calyx short and broadly campanulate; corolla 1-1.5 cm. 

 long, much dilated upward. — Barrens, V7. Ky. and Ark. to La. and Tex. 



).8. SYWAWDRA Nutt. 



Calyx bell-shaped, inflated, membranaceous, irregularly veiny. Corolla with 

 a long tube, much expanded above and at the throat ; the upper lip slightly 

 arched, entire, the lower spreading and .3-cleft, with ovate lobes, the middle one 

 broadest and notched at the end. Filaments hairy ; anthers approximate in 

 pairs under the upper lip ; the two upper each with one fertile and one smaller 

 sterile cell, the latter cells cohering together (whence the name ; from aiv, 

 together, and avfip, for anther). 



1. S. hispfdula (Michx.) Britton. Hairy biennial, 3-6 dm. high; lower 

 leaves long-petioled, broadly ovate, heart-shaped, crenate, thin, the floral sessile, 

 gradually reduced to bracts, each with a single sessile flower ; corolla 3-4 cm. 

 long, yellowish-white. {S. grandiflora Nutt.) — Shady banks of streams, 0. to 

 111., Tenn., and Va. June. 



14. PHl6mIS [Tourn.] L. Jerusalem Sage 



Upper lip of the corolla arched ; the lower spreading, 3-cleft. Stamens as- 

 cending under the upper lip ; the filaments of the upper pair longer than the 

 others in P. tuberosa, with an awl-shaped appendage at base ; anther-cells di- 

 vergent and confluent. — Leaves rugose. Whorls dense and many-flowered, 

 axillary, remote, bracted. (An old Greek name of a woolly plant.) 



1. P. TUBERdsA L. Tall perennial, nearly smooth ; leaves ovate-heart-shaped, 

 crenate, petioled, the floral oblong-lanceolate ; bracts awl-shaped, hairy ; upper 

 lip of the purple corolla densely bearded with white hairs on the inside. — Shore 

 of L. Ontario, N. Y., local. June, July. (Nat. from Eu.) 



15. 6ALE6FSIS L. Hemp Nettle 



• 



Calyx about 5-nerved, vvith 5 somewhat equal teeth. Corolla dilated at the 

 throat ; upper lip ovate, arched, entire ; the lower 3-cleft, spreading, the lateral 

 lobes ovate, the middle one inversely heart-shaped ; palate with 2 teeth at the 

 sinuses. — Annuals, with spreading branches, and several-many-flowered whorls 

 in the axils of floral leaves which are nearly like the lower ones. (Name com- 

 posed of 7aX^r), a weasel, and S^is, abearance, from some fancied likeness of 

 the corolla to the head of a weasel.) 



1. G. Tetr\hit L. (Common H.) Stem swollen below the joints, bristly- 

 hairy ; leaves ovate, coarsely serrate ; corolla purplish, white, or variegated, 

 about twice the length of the calyx. — Waste places and fields, common. Juue- 

 Sept. (Nat. from Eu.) 



2. G. LAdanum L. (Red H.) Stem canescent with appressed pubescence ; 

 leaves linear or lanceolate, more or less downy, entire or obscurely serrate ; 

 corolla red or rose-color (often spotted with yellow), much exceeding the calyx. 



Ballast and waste places, N. B. to Mich, and N. J., local. (Adv. from Eu.) 



Var. latif6lia Wallr. Leaves ovate-oblong, sharply toothed; upper parts oi 

 the plant copiously glandular. — Similar places, casual. (Adv. from Eu.) 



