246 



THE FLORA. 



Okdeb LXXXV. LOGANIACE^. 



Herbs or shrubs with opposite leaves, with the 



stipules small or mere ridg^ connecting the base of the petioles ; 



flowers 4 or 5-parted, gamopetalous, regular ; 



ovary free ; fruit 2-celled, many-seeded, or few-seeded. 



Analysis of the Oenera. 

 § Corolla tubular, lobes 5, valvate in tbe bud. . . .a 

 § Corolla bell-shaped, lobea 4 or 5, imbricate in the bud b 



a Styles "wholly xinited into 1. Corolla tube long. W. S. Spiqe'lia. 



a Styles distinct, with the stigmas united. Fls. small, white. S. Mitbe'ola. 

 b Flowers 4-parted. Diffuse, low herbs. M. S. Polyprenum. Poltpre'mom. 



b Flowers 5-parted. Slender climbing shrubs. S. Gelsem'inum. 



1. SPIGE'LIA. Pink-root. 



Oalyx segments linear-subulate. OoroUa narrowly funnel-form. Stamens 

 5. Capsule 2-oelled, few seeded. — Herbs with the flowers sessile in a 

 terminal one-sided coiled spike. 



S. Maryland'ioa. Maryland P. Stem square, erect. Leaves sessile, ovate-lanceo- 

 late. Corolla 4 or 5 times longer than the calyx, scarlet. June. 



Fig. 563. Bpigelia; tlie spike uncoils as the flowers open. Fig. iU. A flower, natural size. 



