MINT FAMILY. 353 



27. CEDRONELLA. (From Cedrus, the cedar tree, referring to the 



fragrance of one species.) Tj. 



C. cordata, Benth. Shady grounds from W. Penn. S., but rare ; low, 

 hairy, with long leafy runners, heart-shaped leaves, and scattered flowers, 

 the purplish corolla 1^' long, its throat inflated. 



C. cana, Hook. Mexico, and cult.; pale or ashy; leaves ovate-lanceo- 

 late, somewhat toothed ; corolla an inch or less long, pink, the flowers in 

 close clusters ; l-3. 



28. BRTJNELLA, SELF-HEAL or HEALALL. (Latinized from the 

 old German name.) Flowers all summer. 2/ 



B. vulgaris, Linn. Low, spreading, with ovate or oblong petioled 

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

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

 grounds ; common in thin lawns. 



29. SCUTELLARIA, SKULLCAP. (Latin scutella, a dish.) Flowers 

 in summer, in our species blue or violet, y. 



* Flowers small in axillary or some terminal one-sided racemes. 



S. laterifldra, Linn. MAD-DOG SKULLCAP from the shape of the 

 fruiting calyx ; smooth, branching, l-2 high, with lance-ovate or oblong 

 acute coarsely serrate leaves on slender petioles ; racemes rather leafy- 

 bracted ; flowers }' long. Shady wet places ; common. 



* * Flowers large, in racemes or spikes terminating the stem and branches. 



-t- Stem leaves all cordate ; lateral lobes of the corolla about equaling the 

 upper lip. 



S. versicolor, Nutt. Stem stout, l-3 high, soft-pubescent, as are 

 the heart-shaped, very veiny and rugose, crenate and bluntish long-peti- 

 oled leaves ; spike-like racemes clammy-pubescent ; corolla almost 1' 

 long, the lower lip purple-spotted. Banks, Penn. to Minn., and S. 



S. saxatilis, Riddell. Glabrous or only slightly hairy ; stem 6'-18', 

 weak, often producing runners ; leaves ovate or oblong, obtuse, crenate. 

 Moist banks, Del., W. and S. 



+- - Stem leaves not cordate (save occasionally the lowermost) ; lateral 

 lobes of corolla shorter than upper lip. 



i-t- Green, nearly glabrous. 



3. serrata, Andr. l-3, the raceme single and loosely flowered; 

 leaves ovate to ovate-oblong, tapering at both ends, serrate ; corolla 1' 

 long and narrow, its lips of equal length. Woods, Penn., W. and S. 



*+ *-* Grayish, pubescent to tomentose. 



S. cane'scens, Nutt. Ontario, S.; 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 

 down, otherwise smoothish ; corolla 1' long. 



S. pildsa, Michx. Pubescent with spreading hairs ; stem nearly 

 simple, l-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 f ' long. 

 N. Y., W. and S.; variable. 



S. integrifdlia, Linn. Minutely hoary, l-2 high ; leaves lance-oblong 

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

 1' long, much enlarged upwards. Dry places, N. Eng., S. 

 GRAY'S F. F. & G. BOT. 23 



