ScUTELLARIA, XCIIl. LABIATAE. 4255 
as the whole plant, clothed with a whitish wool. Leaves petiolate, taper- 
ing to an obtuse point, pale, with whitish down beneath. Flowers purplish, in 
very hairy, mostly terminal whorls or heads. Peduncles cymosely branched, 
short. Involucre of narrow and bristle-like bracts, about equaling the hairy, 
subulate ealyx teeth. July. 
Trize 6. SCUTELLARINE®.—Calyx bilabiate, upper lip truncate. Co- 
rolla bilabiate, upper lip vaulted, tube ascending, exserted. Stamens 4, 
ascending beneath the upper lip of the corolla. 
2. SCUTELLARIA. 
Lat. scutella, a small vessel; from the resemblance of the calyx with its appendages. 
Calyx campanulate, bilabiate, lips entire, upper one appendaged on 
the back and closed after flowering ; cor. bilabiate, upper lip vaulted, 
lower dilated, convex, tube much exserted, ascending ; sta. ascending 
beneath the upper lip; anth. approximate in pairs. 
* Flowers axillary, solitary. 
1. S. GauERicuLAtTa. Common Scull-cap. 
St. erect, simple, or branched; vs. lanceolate-cordate, remotely crenate- 
serrate ; fls. axillary, solitary —? Meadows and ditches, Can. to Penn. Abun- 
dant. The whole plant glabrous. Stem square, 12—18’ high. Leaves trun- 
cate-cordate at base and acutish at apex, scarcely petiolate, 14’ by 3’. Flowers 
much larger than the preceding, rarely more than 1 from the same axil, witha 
vizor-like calyx like that of the other species. Cor. an inch in length, blue. Aug. 
2. S. NERvosa. Pursh. (S. gracilis. Nutt.) 
St. slender, erect, subsimple, stoloniferous ; vs. broad-ovate, subcordate, 
crenate-serrate, sessile, glabrous, 3—5-veined, lower roundish-ovate, upper ovate 
and lance-ovate, slightly petioled ; fis. axillary, solitary —Rocky shades, a:ong 
streams, Penn.! to Ill.! and La. Roots creeping, often sending out long, fili- 
form stolons. Stem 8—15’ high, weak, often with a few filiform branches. 
Leaves 2—15” by 5—12"”, the middle pairs largest, acute or obtusish. Floral 
leaves entire, small. Flowers few, sometimes on the slender branches only. 
Corolla pale blue, 4—6” long. May—Jl. 
|3. S. parvtta. Michx. (S. ambigua. Nuit.) 
YSt. simple or branching at base, square, puberulent ; lower lvs. suborbicu- 
lar, petiolate, upper oblong-ovate, obtuse, entire, sessile, axillary, opposite,— 
Pastures, Mid.! and Western States! Plant 3—6’ high. Root generally (not 
always ?) with tuberous internodes, and fibrous at each joint. Leaves 3—6” 
long, 4 as wide, lower 3!’ diam. Flowers 4—6” long, rather numerous, longer 
than the leaves, blue. June. 
* * Flowers in axillary and terminal racemes. 
4. S. paTeRIrLoRA. Mad-dog Scull-cap, 
. St. branching, nearly glabrous; lvs. ovate-lanceolate, acuminate, serrate, 
petiolate ; rac. lateral, axillary, leafy Meadows and ditches, lat. 38° to Arc. 
Am. Stem square, 1—2f high, very branching. Leaves opposite, rounded at 
base, acuminate or acute, coarsely serrate, on petioles an inch in length. Ra- 
cemes opposite, axillary, somewhat one-sided, on long stalls, and consisting of 
numerous small, blue flowers intermixed with small leaves. The English 
name is due to the singular form of the calyx, which after flowering, closes 
upon the seeds like a cap or vizor. July, Aug. 
5. S. présa. Michx. Darl. (S. ovalifolia. Bart.) ; 
St. erect, mostly simple, hirsute-pubescent; Jvs. pubescent, rhomboid- 
ovate or oval, crenate-serrate, petiolate, in remote pairs; vac. terminal, rather 
short ; bracts elliptic-ovate-—Open woodlands, Penn. to Car. Stem 1—1/f high, 
purplish. Leaves few, 1—24 by 3—14’, cuneately narrowed to the petiole, 
rather obtuse. Raceme generally simple and few-flowered, with opposite, el- 
liptical bracts. Pedicels and calyx hairy. Corolla tube nearly white below, 
blue at summit, 6—9" long. June—Aug. ; 
on” 
