CAM PAN ULACEAE. 



VOL. III. 



i. Specularia biflora (R. & P.) F. & M. Small 

 Venus' Looking-glass. Fig. 4024. 



Campanula biflora R. & P. Fl. Per. 2 : 55. pi. 200. j. 6. 

 1799. 



S. biflora F. & M. Ind. Sem. Hort. Petrop. 1:17. 1835. 

 Legouzia biflora Britton, Mem. Torr. Club 5: 309. 1894. 



Glabrous, or nearly so; stem simple or branched, 

 very slender, roughish on the angles, 6'-2 high. 

 Leaves ovate, oblong, or the upper lanceolate, ses- 

 sile, acute or obtuse at the apex, crenate with a few 

 teeth, or entire, 4"-io" long, or the upper smaller ; 

 earlier flowers with 3 or 4 ovate to lanceolate calyx- 

 lobes, those of the later flowers 4 or 5, lanceolate- 

 subulate, longer; capsule oblong-cylindric, 3"-s" 

 long, opening by valves close under the calyx-teeth. 



In dry soil, Virginia to Kentucky, Missouri, Kansas, 

 Florida and Texas. Also in Oregon, California and 

 South America. April- July. 



2. Specularia perfoliata (L.) A. DC. 

 Venus' Looking-glass. Fig. 4025. 



Campanula perfoliata L. Sp. PI. 169. 1753. 

 S. perfoliata A. DC. Mon. Campan. 351. 1830. 

 L. perfoliata Britton, Mem. Torr. Club 5: 309. 1894. 

 More or less pubescent; stem densely leafy, 

 simple or branched from near the base, slender, 

 rather weak, sometimes prostrate, retrorse-hispid 

 on the angles, or nearly smooth, 6'-24' long. Leaves 

 orbicular or broadly ovate, strongly cordate-clasp- 

 ing or the lower merely sessile, crenate-dentate 

 or sometimes entire, i'-i' wide; flowers solitary 

 or 2-3 together in the axils, sessile, the later 

 (upper) ones with 5 (rarely 4) triangular-lanceo- 

 late acuminate rigid calyx-lobes, and a rotate blue 

 or violet corolla 5"-io" broad, the earlier ones 

 with 3-4 shorter calyx-lobes longer than the rudi- 

 mentary corolla ; capsule oblong, or narrowly tur- 

 binate, 2"-3" long, finally opening at about the 

 middle; seeds lenticular. 



In dry woods, Maine and Ontario to British Co- 

 lumbia, south to Florida, Louisiana, Mexico, Arizona 

 and Oregon. Called also clasping bellflower. May- 

 Sept. Also in the mountains of Jamaica and Santo 

 Domingo. 



3. Specularia"leptocarpa (Nutt.) A. Gray. 

 Western Venus' Looking-glass. Fig. 4026. 



Campylocera leptocarpa Nutt. Trans. Am. Phil. Soc. 

 (II.) 8: 257. 1843. 



5". leptocarpa A. Gray, Proc. Am. Acad. n: 82. 1876. 

 L. leptocarpa Britton, Mem. Torr. Club 5 : 309. 1894. 



Hirsute, or nearly glabrous; stem slender, simple, 

 or branched from the base, 6'-is' high. Leaves 

 linear-lanceolate to oblong, sessile, not clasping, acute 

 at both ends, or the lowest obtuse at the apex, entire 

 or sparingly denticulate, i'-i' long, i"-2" wide; 

 flowers sessile and usually solitary in the axils, the 

 later ones with 4-5 subulate calyx-lobes and a rotate 

 corolla 5"-9" broad, the earlier ones with 3 shorter 

 calyx-lobes and rudimentary corolla ; capsule linear- 

 cylindric, 4"-8" long, less than i" thick; the upper at 

 length opening near the summit; seeds oblong. 



In dry soil, western Missouri and Kansas to Montana, 

 Colorado and Texas. May-Aug. 



