368 DIDYNAMIA ANGIOSPERMIA 



2. M. alatus, L. Leaves pctiolato, ovate-lanceolate, unequally Jen* 

 tate-serratc ; peduncles shorter than the flower ; calyx-segments round- 

 od, mucronatc. Meck % Hot. p. 264. Icon, Bart. Am. 3. tab. 94. 



Winged Mimulus. 



Plant glabrous. Root perennial. Stem 1 to 2 or 3 feet high, erect, square, slightly 

 winged on the angles by the decurrence of the petioles, sparingly branched. 

 Leaves 2 or 3 to 5 or 6 inches long, and 1 to 2 or 3 and a half inches wide, some- 

 what obtusely sinuate-serrate, or dentate, thin and membranaceous, tapering at 

 base to a petiole half an inch to an inch in length. Peduncles 1 fourth to half an 

 inch long. Calyx 5-angled ; segments short, rounded, mucronato. Cor olla pale 

 violet-purple, rather smaller than in the preceding. 

 Hob. Low grounds; along rivulets: frequent. Fl. July—August. Fr. Sept. 



Obs. This has much general resemblance to the preceding : but is usually a 

 larger plant,— and is readily distinguished by its pctiolate leaves, and short pedun- 

 cles. Two other species have been found in the U. States, far west. 



298. LINARIA. Touvnef. Juss. Gen. p. 120. 

 [Latin, Linum, flax; from the resemblance of the leaves in many species] 



Calyx 5-parted. Corolla personate ; upper lip bifid, reflexed ; lower 

 lip trifid, the throat closed by the prominent palate ; tube inflated, with 

 a spur at base. Stigma simple, obtuse. Capsule ovoid, or globose, 

 2-celled, opening with several valves at apex. Seeds margined. 



Herbaceous : leaves mostly alternate, rarely opposite or vcrticillate ; flowers 

 axillary, solitary, often approximated in terminal leafy or bracteate racemes. 

 Nat. Ord. 211. Lindl. Scrophularineje. 



1. L. vulgaris, Mmnck* Stem crept, simple; leaves lance-linear, 

 crowded ; flowers imbricated, in a terminal raceme ; calyx smooth, short- 

 er than the spur of the corolla. Mt. Kev>. 4. p. 1 7. 

 Antirrhinum Linaria. L. WillcL Pursh, J\*utt. Beck y &c. 

 Common Linaria. Vulgo — Toad-flax. Ransted weed. Butter and eggs. 

 Gall. — Muflier linaire. Germ. — Das Flachskraut. Hisp. — Linaria. 



Plant smooth and somewhat glaucous. Root perennial, creeping, subligneous- 

 Stem 1 to 2 feet high, terete, leafy, rarely branched, often growing in bunches. 

 Leaves 1 to 2 inches long, and 1 to 2 lines wide, entire, sessile, numerous, and ir- 

 regularly scattered on the stem. Floioers pedunculate, in a dense terminal brac- 

 teate raceme ; peduncles shorter than the bracts. Calyx-segments lance-oblong, 

 acute, the 2 lower ones a little separated. Corolla pale greenish yellow, smooth, 

 the palate of the lower lip bright deep orange-color, villose in the throat ; spur 

 subulate, about half an inch long. Anthers approximated in pairs, 2-lobed, lobes 

 diverging; \ovrer filaments longer, villose at base. Style shorter than the longest 

 stamens; stigma obliquely truncate. Capsule ovoid-oblong, thin, smooth. Seed* 

 numerous, with a dilated orbicular margin, roughish-dotted in the centre. 



Hab. Fence-rows; pastures, &c. common. Fl. June— Sept. Fr. August— Octo. 



Obs. This foreigner is extensively naturalized, —and though rather showy, is 

 an obnoxious weed In our pastures. The remarkable variety, called Peloria^— 

 with a regular 5-cleft ventricose corolla, 5 spurs, and o stamens,— was found near 

 this Borough, in 1827, by H. H. Van Ajiringb, Esq. but it is very rare. There 

 are two or three other species said to be naturalized in some parts of the U. States ; 

 and also one or two indigenous. 



