252 MINT FAMILY. 



29. BRITNELLA, SELF-HEAL or HEAIi-ALL. (Latinized from the 

 old German name.) Fl. all summer. % 



B. vulgaris. Low fields and copses ■ low, spreading, with ovate or ohlong 

 petioled leaves, and 3 flowers under each of the broad and round purplish bracts 

 of the head ; corolla bluish-purple or rarely white. 



30. SCUTELLARIA, SKULLCAP. (Name from Latin scutdlum, a 

 dish.) Fl. in summer, in species ours blue or violet. Ij. 



§ 1 . Flowers in racemes or spikes terminating the stem and branches. 



S. versicolor. River-banks, from Penn. W. & S. : stem stout, l°-3° high, 

 soft-pubescent, as are the heart-shaped very veiny and rugose crenate and blunt- 

 ish long-petioled leaves ; spike-like racemes clammy-pubescent ; corolla almost 

 1' long, the lower lip purple-spotted. 



S. oan6scens. From Penn. S. & W. : stems branching, 2° -4° high; 

 leaves petioled, ovate or lance-ovate, or some of them heart-shaped at base, the 

 lower surface as also the racemes and flowers whitish with very fine soft dowm, 

 otherwise smoothish ; corolla 1' long. 



S. pilbsa. Pubescent with spreading hairs ; stem nearly simple, 1° - 3° 

 high, bearing rather distant pairs of roundish or oblong-ovate veiny leaves, the 

 lower sometimes heart-shaped, upper on short-margined petioles ; racemes 

 short, the bracts spatulate ; corolla |' long. 



S. integrifdlia. Along thickets : minutely hoary, 1° - 2° high ; leaves 

 lance-oblong or linear, obtuse, nearly entire, very short-petioled ; raceme short; 

 corolla 1' long, much enlarged upwards. 



§ 2. Flowers short-peduncled in the axils of some of the sessile leaves. 



S. nervdsa. Moist ground from New York S. W. : smooth, 1° - 2° high, 

 slender ; leaves roundish or ovate, sparingly toothed, I' long, those subtending 

 the flowers ovate-lanceolate and entire, the nerve-Uke main veins prominent 

 beneath ; flowers 4' long. 



S. parvula. Dry banks and shores, commoner W. & S. : low and spread- 

 ing, 3' - 6' high ; with round-ovate or lance-ovate and slightly heart-shaped 

 leaves \' or more long, and flowers \' long. 



S. galerieul^ta. Wet ground N. : smoothish ; the slender simple sterna 

 1° - 2° hi};'h ; leaves, ovate-lanceolate, sometimes with a heart-shaped base, acute, 

 serrate ; flowers %' long, with arched upper lip. 



§ 3. Flowers in axillary or some terminal one-sided racemes. 

 S. lateriflora. Wet shady places : smooth, branching, 1° - 2° high, with 

 lance-ovate or oblong acute coarsely serrate leaves on slender petioles ; racemes 

 rather leafy-bracted ; flowers 4' long. 



31. MARBUBIUM, HOREHOUND. (Late Latin name, from Hebrew 

 word for bitter.) Fl. late summer, yi 



M. yulg&,re, Common H., from Europe, in gardens and waste places : 

 brandling, spreading, hoary-downy, with round-ovate crenate-rugose leaves on 

 petioles, and small white corolla. 



Black Horkhound, Ball6ta. n^ora, of Europe, and naturalized in a 

 few places E., is not hoary, and has purplish flowers with a spreading 5-toothed 

 border to the calyx. 



32. GALEOPSIS, HEMP-NETTLE. (Name in Greek means like u 

 weasel ; the likeness not at all obvious.) Fl. summer. ® 



G. Tetr&,hit, Common H. Damp waste and cult, grounds, nat. from Eu. : 

 a common weed, rather bristly-hairy, with stem swollen below each joint, leaves 

 ovate and coarsely serrate, and corolla purplish or variegated. 



33. LAMIUM, DEAD-NETTLE. (Name from Greek word for throat.) 

 Low spreading herbs from Old World : fl. spring and summer. 



