312 LABIATiE. (mint FAMILY.) 



§ 2. GLECHOMA, L. — Leaves all alike; the axillanj dusters loosely few-floicered. 

 2. N. GleohOma, Bcnth. (Ground Ivy. Gill.) Creeping and trailing ; 

 leaves jietioled, round kidney-shaped, crcnate, green both sides ; corolla tlirico 

 the length of the calyx, light blue. (Glechoma hederacea, L.) — Shaded, waste 

 grounds near dwellings. May - Aug. — Anthers with the cells diverging at a 

 right angle, each pair approximate and forming a cross. (Adv. from Eu.) 



21. ]DBACOC:e;PHA1,IJM[, L. Deagon-head. 



Calyx tubular, 1,3-15-nerved, straight, 5-toothed; the upper tooth usually 

 much largest. Corolla 2-Iipped ; the upper lip slightly arched and notched ; llie 

 lower spre.ading, 3-cloft, with its middle lobe largest and 2-cleft or notched at the 

 end. Stamens 4, ascending under the upper lip ; the lower pair .<!horter. An- 

 thers approximate by pairs, the cells divergent. — Whorls many-flowered, mostly 

 spiked or capitate, and with awn-toothed or fringed leafy bracts. (Name from 

 SpaK&jv, a dragon, and K((paXrj, head, alluding to the form of the corolla.) 



1. K. pai'Viflorum, Nutt. Stem erect, leafy (8' -20' high); leave's 

 ovate-lanceolate, sharply cut-toothed, petioled ; whorls crowded in a terminal 

 head or spike ; upper tooth of the calyx ovate, nearly equalling the bluish small 

 slender corolla, (f; — Rocky places, Jefferson and St. Lawrence Count ics, 

 New York ; shore of Lake Superior, and northwestward. May -Aug. 



22. CEDKONEIiLiA, Mainch. Cedkonella. 



Calyx rather obliquely 5-toothed, many-nerved. Corolla ample, expanded at 

 the throat, 2-lipped; the upper lip flattish or concave, 2-lobed; the lower .3- 

 cleft, spreading, the middle lobe largest. Stamens 4, ascending ; the lower pair 

 shorter. Anther-cells parallel. — Sweet-scented perennials, with pale purplish 

 flowers. (Name a diminutive of Ke'Spiov, oiV o/"C(;(7a)', from the aromatic leaves 

 of the originial species, C. triphylla, the Balm-of-Gilead of English gardens.) 



1. C. coi'dsita, Benth. Low, with slender ranners, hairy ; leaves broadly 

 heart-shaped, crenate, petioled, the floral shorter than the calyx ; whorls few- 

 flowered, approximate at the summit of short ascending stems; corolla haiiy 

 inside (Ij' long) ; stamens shorter than tho upper lip. (Dracoccphalum cordii- 

 tum, Nutl.) — Low shady banks of streams, W. Penn. to Kentucky, and south- 

 ward along the mountains. June. 



23. SYNAWDBA, Nutt. Synandba. 



Calyx bell-shaped, inflated, membranaceous, in-egularly veiny, almost equally 

 4-toothed ! Corolla with a long tube, much expanded above and at the throat ; 

 the upper lip slightly arched, entire ; the lower spreading and 3-clcft, with ovate 

 lobes, the middle one broadest and notched at the end. Stamens 4, ascending : 

 filaments hairy : anthers approximate in pairs under the upper lip ; the two 

 upper each with one fertile and one smaller sterile cell, tho latter cohering with 

 each other (whence the name; from (Tvv, together, and ai/rjp, foi' anthtr). 



I. S. grandiflova, Nutt. — Shaded banks, Oliio, Kentucky, and south- 

 ward. June. — A perennial'? hairy herb, 1"^ high. Lower leaves long-petioled, 



