366 ASCLEPIADACEJi. (MILKWEED FAMILY.) 



gium, with their roundcil summits connivcnt over it. — "Wet pine barrens, Florida 

 and Georgia. June and July. — Stem 1°- 2° high. Leaves 1'- 2' long, some 

 what fleshy. Corolla 8" - 10" wide. 



* * Leaves alternate. 



3. A. paniculata, Dccaisne. Closely pubescent ; stem angular, often 

 branching ; leaves oblong or lance-oblong, acute or obtuse at each end, short- 

 petioled; umbels corymbose, often compound; corolla large, greenish, spread- 

 ing or marly erect ; leaves of the crown oblong, obtuse, ascending, shorter than 

 the nearly sessile gynostegium. (Podostigma viridis, Ell.) — Dry pine barrens, 

 Florida to South Carolina. July. — Stem 1° - 1^° high, leafy to the summit. 

 Leaves 3'- 4' long. Corolla 1' wide. 



4. A. longifolia, Ell. Pubescent; stem terete ; leaves linear and linear- 

 lanceolate, acute at each end, slightly petiolcd, rough-margined, the lowest com- 

 monly opposite, sometimes wliorled ; umbels pubescent, slendcr-peduncled, 

 many-flowered, alternate, opposite or whorled ; flowers small, pale purple ; 

 corolla reflexed; leaves of the crown deep purple, oval, shorter than the gy- 

 nostegium, and adnate to its stalk; follicle lanceolate, tomentose. (A. longi- 

 folia, Michx. in part.) — Low pine barrens, Florida, and northward. July. — 

 Stem 1° - 1|° high. Leaves 3' - 6' long. Corolla 4" wide. 



3. PODOSTIGMA, Ell. 



Calvx 5-parted. Corolla 5-parted, with the lobes erect. Leaves of the crown 

 destitute of a horn, ascending, incurvcd-bcakcd at the apex, united with the base 

 of the long and slender gynostegium. Stigma small, depressed. Seeds comose 

 — A low pubescent simple-stemmed perennial herb, with opposite lanceolate 

 sessile leaves, and few-flowered umbels on lateral peduncles. 



1. P. pubescens, EH- — Low pine barrens, Florida to North Carolina. 

 June -Oct. — Root tuberous. Stem 6' -12' high. Leaves erect, l'-2' long. 

 Umbels of 4 - 6 orange-colored flowers. Corolla 4" - 5" long, as long as the 

 pedicel, longer than the short peduncle, the oblong lobes wavy on the margins. 

 Follicles linear-lanceolate, tomentose, 4' -6' long, many-seeded. Seeds oval, 

 winged. 



4. METASTELMA, R. Brown. 



Calyx 5-parted. Corolla bell-shaped, the lobes mostly hoary -pubescent within 

 Crown S leaved, inserted on the base or on the summit of the gynostegium. 

 Stigma flat. Follicles Blender, smooth. Seeds comose. — Twining shrubs, with 



-mo Mill haves. Umbels few-flowered. Flowers small, white. 



i. M. Sehlcctendalii, Dccaisne. Branches pubescent ; leaves oblong 

 or obovate, cuspidate, rather acute at the base, on slender petioles; peduncles 

 3-6-fiowered, as long as the petiole, shorter than the pedicels; sepals obtuse, 

 ciliate ; lobes of tin- corolla ovate-lanceolate, ineurvci, densely pubescent \\ it 1 1 1 n ; 

 leaves of the crown oblong, inverted on the summit of the slender gynostegium, 

 a- long as the stigma.— South Florida. — Leaves '.' - 1 V loiiL r . tin- margins kt- 

 ulute. Corolla 2" long, Gynostegium 5 winged at the base. 



