886 FLORA. 



7-15 cm. long, the lowest sometimes cordate; flowers in a sometimes leafy spike, 

 which is often 3-O dm. long; lower bracts ioliaceous, the upper subulate; corolla 

 blue, or rarely white, about 25 mm. broad, deeply 5 -cleft; calyx-lobes linear-subu- 

 late spreading; style declined and curved upward, long-exserted; capsule narrowly 

 turbinate, ribbed, erect, 8-10 mm. long, opening near the summit. In moist 

 thickets and woods, N. 13. to Ont., S. Dak., Fla., Ky., Ark. and Kans. July-Sept. 



2. SPECULARIA Heist. 

 [Legouzia Durand.] 

 Annual herbs, with alternate toothed or entire leaves, the stem and branches 

 long, slender. Flowers axillary, sessile or nearly so, 2-bracted, or the upper 

 panicled in some exotic species, the earlier (lower) ones small, cleistogamous, the 

 later with a blue or purple nearly rotate corolla. Calyx-tube narrow, the lobes in 

 the earlier flowers 3 or 4, in the later 4 or 5. Corolla 5-lobed or 5 -parted, the lobes 

 imbricated in the bud. Filaments flat; anthers separate, linear. Ovary 3 -celled 

 (rarely 2- or 4-celled); ovules numerous; stigma usually 3-lobed. Capsule pris- 

 matic, cylindric, or narrowly obconic, opening by lateral valves. Seeds ovoid, 

 oblong, or lenticular. About 10 species, natives of the northern hemisphere, one 

 extending into South America. [Name derived from Speculum Veneris, the an- 

 cient name of the European Venus' Looking-glass.] The generic name Sj>ecu/aria 

 Heist., used by Fabricius in 1759, antedates Legouzia Durand, 1782. 

 Capsule narrowly oblong or turbinate. 



Leaves sessile ; capsule-valves near the top. 1. S. biflora. 



Leaves cordate-clasping; capsule-valves at about the middle. 2. S. per/oliata. 



Capsule linear-cylindric ; leaves sessile ; western. 3. S. leptocarpa. 



1. Specularia bifiora (R. & P.) A. Gray. Small Venus' Looking-glass. 

 (I. F. f. 3497-) Glabrous, or nearly so; stem simple or branched, very slender, 

 roughish on the angles, 1.5-3 dm. high. Leaves ovate, oblong, or the upper lan- 

 ceolate, sessile, acute or obtuse at the apex, crenate with a few teeth, or entire, 

 8-20 mm. long, or the upper smaller; earlier flowers with 3 or 4 ovate to lanceo- 

 late calyx-lobes, those of the later flowers 4 or 5, lanceolate-subulate, longer; cap- 

 sule oblong-cylindric, 6-10 mm. long, opening by valves close under the calyx- 

 teeth. In dry soil, Va. to Mo., Kans., Fla. and Texas. Also in Cal. and S. Am. 

 April-July. 



2. Specularia perfoliata (L.) A. DC. Venus' Looking-glass. (I. F. f. 

 3498.) More or less pubescent; stem densely leafy, slender, sometimes prostrate, 

 retrorse-hispid on the angles, or nearly smooth, 1. 5-6 dm. long. Leaves orbicular 

 or broadly ovate, crenate-dentate or sometimes entire, 6-25 mm. wide; flowers 

 solitary or 2-3 together in the axils, the later (upper) ones with 5 (rarely 4) trian- 

 gular-lanceolate acuminate rigid calyx-lobes, and a rotate blue or violet corolla 1-2 

 cm. broad, the earlier ones with 3 or 4 shorter calyx-lobes longer than the rudimen- 

 tary corolla; capsule oblong, or narrowly turbinate. 4-6 mm. long; seeds lenticular. 

 In dry woods. Me. and Ont. to Br. Col., Fla.. La.. Mex., Utah and Ore. May-Sept. 



3. Specularia leptocarpa (Nutt.) A. Gray. Western Venus'Looking-glass. 



T. F. f. 3499.) Hirsute, or nearly glabrous; stem slender, 1.5-4.5 dm. high. 

 Leaves linear-lanceolate to oblong, not clasping, acute at both ends, or the lowest 

 obtuse at the apex, entire or sparingly denticulate. 1 2.5 cm. long. 2-4 mm. wide; 

 flowers usually solitary in the axils, the later ones with 4 or 5 subulate calyx-lobes 

 and a rotate corolla 10 18 mm. broad, the earlier ones with 3 shorter calyx-lobes and 

 rudimentary corolla; capsule 8-16 mm. long, less than 2 mm. thick, the upper at 

 length opening near the summit; seeds oblong. In dry soil, western Mo. to Mont 

 and Tex. May-Aug. 



3. JASldNE L. 



Herbs, the flowers in terminal heads subtended by a many-leaved involucre. 

 Calyx tube campanulatc, adnate to the ovary, the limb 5-divided. Corolla at first 

 tubular, splitting later to the base into 5 linear or linear-oblanceolate segments. 

 ; Qts subulate. Anthers united at the base, free above. Ovary inferior, 



1; stigma club-shaped. Capsule 2-celled, dehiscent by two terminal pores, 

 medicinal plant.] Five species of central Europe and the 

 Mediterranean Region. 



