VERBENACEAB 195 



serrate; spikes loosely paniculate, very slender, elongating; flow- 

 ers rather distant, small. 

 NETTLE-LEAVED VERBENA. Common Vervain. 



Perennial. Stem 2 to 3 or 4 feet high, hirsutely pubescent, with slender axillary 

 spreading branches above. Leaves 2 to 4 inches long, abruptly narrowed at base 

 to a, petiole % an inch to % in length. Spikes 1 or 2 to 5 or 6 inches long, green, 

 filiform and rather flaccid; flowers distinct, and finally a little distant; brads 

 lance-ovate, shorter than the calyx. CoroUa white, very small, the throat filled 

 with a delicate white villus. 

 Hob. Pastures, road sides, Ac.: common. Fl. July. Fr. Sept. 



Obs. Towards autumn, this plant generally becomes covered 'with, 

 a glaucous pulverulent matter, resembling mould. It is regarded 

 as a weed, in our pastures ; and Dr. GRAY suggests that it may 

 have been introduced. It is true, I have never observed it, except 

 in our old cultivated settlements, where foreign weeds are chiefly 

 naturalized; but I cannot learn that it has been found in any other 

 country. 



3* V, ailgustifolia ? MX. Leaves linear-lanceolate, tapering to 

 the base, remotely toothed ; spikes few or solitary, the flowers at 

 first crowded, rather large. 

 NARROW-LEAVED VERBENA. 



Perennial. Plant scabrous with short hairs. Stem 9 to 18 inches high, simple 

 or sparingly branched. Leaves often somewhat crowded above, 1 to 2 or 3 inches 

 long, narrow, tapering gradually almost to a petiole at base. Spikes 1 or 2 to 5 or 

 6 inches long; bracts subulate-lanceolate, as long as the calyx; corolla purplish 

 blue. 

 Hob* Sandy grounds ; E. Marlborough : rare. Fl. July. Fr. Sept. 



Obs. Collected by Mr. BENJAMIN F. PASKER, in 1849. 

 280. PHRY v Ttt A, L. 



[A name of unknown derivation.] 



Calyx bilabiate ; upper lip of 3 subulate teeth j lower lip of 2, shorter. 

 Corolla bilabiate; upper lip short, emarginate; lower Up much 

 longer, 3-lobed. Stamens included. Fruit oblong, 1-celled, 1-seeded! 

 Perennial : flowers opposite, in slender terminal spikes ; fruit re- 

 flexed. 



1. P. leptostachya, L. Leaves ovate, acute, coarsely crenate- 

 serrate, on rather long petioles. 

 SLENDER-SPIKED PHRTSMA. Lop-seed. 



Stem 2 to 3 feet high, obtusely 4-angled, pubescent, with a few opposite axillary 

 vtrgate branches above. Leaves 3 to 6 inches long, thinnish, rounded at base, or 

 abruptly contracted to & petiole half an inch to 2 inches in length. Spikes 3 to 6 

 or 8 inches in length ; flowers with 3 small subulate ciliate persistent bracts at 

 base; corolla pale rose-color, small ; fruit inclosed in the closely retlexcd calyx. 

 Hub. Borders of woods ; copses, &c. : frequent. FL July. Fr. Aug. 



281. MP'PJA, L. 



[Dedicated to Augustin Lippi; a French Naturalist, of Italian descent.] 

 Calyx 2- to 4-toothed, often compressed, and becoming bilabiate.-*- 

 Corolla unequally 5-lubod, more or less bilabiate. Stamens inclu- 



