260 * SCROPHULARIACE^. 



acute ; the lowest ovate, slightly toothed and opposite ; peduncles sohtary; 

 axillary, very long. Antirrhinum Elatine Linn. 



Sandy fields. N. Y. to Virg. July. (I). — Stem 1 — 2 feet long, wiih spread* 

 ing branches. Flowers small, yellowish, the upper Up purple. Introduced ? 



Sharp-pointed Toadflax. 



2. L. vulgaris Mill. : stem erect, mostly simple ; leaves linear-lanceolate, 

 scattered, CBOwded ; flowers imbricated in a terminal spiked raceme j calyx 

 smooth, shorter than the spur. Antirrhinum Linaria Linn. , 



Roadsides. Can. to Virg. June — Oct. %. — Stem 1 — 2 feet high, somewhat 

 glaucous, sometimes a little branched. Flowers large, yellow, in a dense ter- 

 minal bracteate raceme, rarely with 3 or 5 spurs. A very troublesome weed. 

 Introduced from Europe. Common Toadflax. Snapdragon. 



3. L. Canadensis Spreng. : stem erect or assurgent, mostly simple ; leaves 

 scattered, erect, linear, obtuse ; flowers racemose ; sterile branches procum- 

 bent. Antirrhinum Canadense Linn. 



Low groimds. Can. to Car. May — Aug. (T)- — Stem about a foot high, 

 slender, often throwing out suckers at base. Flowers very small, blue, in a 

 naked terminal raceme. . Canadian Toadflax. 



^ ' III. Cheloneje. 



3. SCROPHULARIA. Linn.— Figvfort. 

 (So named from its being supposed to cure the scrophula.) 



Calyx deeply 5-cleft or 5-parted. Corolla subglobose ; limb 

 contracted, with 2 short hps ; upper lip 2-lobed, frequently with 

 a scale or abortive stamen within ; lower lip 3-lobed. Capsule 

 2-celled, 2-valved ; valves opening at the apex. 



iS. Marylandica Linn. : stem angled, smoothish ; leaves ovate or ovate- 

 lanceolate, acute, coarsely serrate, mostly rounded or cordate at base ; pe- 

 tioles ciUate ; panicle thyrse-like, the branches composed of loosely flowered 

 clusters. S. nodosa Benth. in D. C. S. nodosa var. Americaiia Mich. S. 

 lanceolata Pursh. 



Woods. Can. to Car. W. to California. June — Au^. %. — Stem 3 — 5 feet 

 high, 4 angled, branched above, slightly pubescent. Leaves opposite, slightly 

 pubescent beneath. Flowers purple-brown tinged with green, in a large termi- 

 nal oblong panicle. Capsule globular. Very closely allied to, if not identical 

 with, S. nodosa of Europe. Figwort. 



4, COLLINSIA. iVw^^.— ColUnsia. 

 (In honor of the late Zaccheus Collins, of Philadelphia.) 



Calyx 5-cleft. ' Corolla bilabiate, the orifice closed ; upper 

 hp bifid, lower trifid ; intermediate segment carinately saccate 

 and closed over the declinate style and stamens. Capsule glo- 

 bose, partly 1 -celled and imperfectly 4-valved. Seeds 2 — 3, 

 umbilicate. 



C. verna Nutt. : assurgent, nearly smooth ; leaves remotely and some- 

 what obtusely serrate ; radical ones oblong or cordate and petiolate ; cau- 

 line ovate-oblong, sessile or clasping ; uppermost ternate 



