DIDYXAMIA. GYMX0S1»ERMIA. ST* 



Flowers vcrticillate, imbricately spiked, bractes of the 

 verticilli larg-e and ciliate. 



Species. 1. P. vulgaris. ^. peimsylvanica. A mere 

 variety of the preceding-, which is certainly an introduced 

 plant, never appearing far beyond the precincts cf habita- 

 tions. 



A small European g-enus. 



416. SCUTELLARIA. Z. (Skull-cap.) 



Margin of the Calix entire, after flowering 

 closed with a galeate lid. Tube of the corolla 

 elongated. 



Herbaceous; flowers solitary, axillary, naked, or in ter- 

 minal or axillary bracteate racemes, bractes 1-flowered- 

 (Seeds gi'anularly tuberculate.) 



f Floivern axillary, solitary. 



Species. l.S. galericulata. Branching-; leaves cordate- 

 lanceolate, crenate, under side pulverulently pubescent, 

 paler; flowers axillary. Hae. On the marg-ins of swamps. 

 New Jersey, common. Exclude the synonym ofPursh. 

 ■2. p. 412. 2. Pamela. 3. * gracilis. Stem mostly sim- 

 ple; leaves remote, broad-ovate, dentate, smooth and 

 sessile, scabrous on the marg-in, upper ones smaller, en- 

 tire; flowers axillary. Hab. In thickets on the marg-in 

 of the Schuylkill, near Philadelphia. S. galericidata? 

 Ph. Oes. Perennial. Stem 12 to 18 inches high, slen- 

 der, erecf, and seldom branched; leaves 10 to 12 lines 

 long-, and nearly the same in breadth, lower ones obtuse, 

 dentures remote, under side prominenily veined; flowers 

 uncommonly small, pale blue. 4. * ambigna. Low, sub- 

 decumbent and divaricately branc'ied; leaves sessile, 

 ovate, remotely and rarely serrate, subhirsute above; flow- 

 ers very small, axillary. Hae. In dry and open forests, 

 Ohio. The habit of this small species is very different 

 from that of the preceding-, yet at the same'time they 

 are closely allied. Oes. Perennial. Stem 4 to 6 inches 

 high, smooth, mostly purple. Leaves approximate^ from 

 5 to 8 lines long, 3 or 4 wide, prominently veined and 

 smooth beneath, mostly acute, upper ones entire, lower 

 with very few serratures, asperate on the marg-in, the up- 

 per surface scattei-ed v/ith short hirsute hairs. Flowers 

 very small, and pale. 5. angustifolia% Ph. 

 f f Flo-ivers racemose. 



6. laterijlora. 7. caroliniana. Is not this a variety of 

 the following? 8. integnfoliiu Obs. The whole plant in^ 

 TOL. II. D 



