LABI AT AE (MINT FAMILY) 699 



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



?. P. denticulata (Ait.) 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, 3-15 dm. high, remotely 

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

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

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



13. SYNiNDRA 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 <rtv, 

 together, and dvr/p, for anther}. 



1. S. hispidula (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, O. 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. TUBER6SA 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. GALE6PSIS L. HEMP NETTLE 



Calyx about 5-nerved, with 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 70X^77, a weasel, and 6\(/Ls, appearance, from some fancied likeness of 

 the corolla to the head of a weasel. ) 



1. G. TETR\IIIT 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. June- 

 Sept. (Nat. from Eu.) 



2. G. LADANUM L. (RED H.) Stem can escent 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 ol 

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



