348 ASCLKPIADACE.E. (MILKWEKI) lA.MILV.) 



1. A. viridiflora, 1-11. I'ubescont : sU-m stout, simiili-; li-aves from oval 

 or ol>ov;itu to lami'iilatL', midulate ; umlicls latiral and leniiiiial, iicarlv sesi- 

 sile, deiisc'lv iaaiiy-llo\verf<i ; Huwi-rs! siiiall, {^ret'iii^li ; leaves of tiie crown 

 oblong, eri'ut, jus long ns the sessile gviiosti-giiinj. — Drv sterile soil. Juue- 

 July. — Stem 1° - 1 i° high. Leaves If - 2i' long. 



2. A. longifolia, Kll. I'ulicsi-ent; stem terete; leaves linear and linear- 

 laueeolate ; luuhels slenderpcduneled, many-Howered ; flowers snuili, pale 

 purple; leaves of the erown deep purple, oval, shorter tlian the gynostegium, 

 aud adnate to its stalls ; foUiile lanceolate, tonientose. — Low \)'me barrens. 

 July. — ytem 1"^- 1^° liigh. Leaves 3' - C long. Corolla 4" wide. 



3. PODOSTIGMA, KU 



Calyx 3-])arted. Corolla S-jiarted, witii the lobes erect. Leaves of the 

 crown d<;stitute of a horn, ascending, incurved-beaked at tlie ajjex, united 

 witli the biise of tiie long and slender gyncjstegium. Stigma small, depre.s.sed. 

 Seeds comose. — A low pubescent simple-stemmed perennial herb, with op- 

 posite lanceolate sessile leaves, aud few-Howercd umbels on lateral peduncles. 



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

 Juue-Oct. — Knot tuberous. Stem 6'-12'high. Leaves erect, r-2'long. 

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

 wavy ou the margins. Follicles linear-lanceolate, tomentose, 4' - 6' long. Seeds 

 oval, winged. 



4. ANANTHERIX, Nutt. 



Leaves of the crowu longer than the corolla, obloug-clavate, obtuse, arching 

 over the sessile gynostegium, slightly crested. Anther-wings not thickened. 

 Pollen-mass oblong, half tlie length of the very slender stalk. Otherwise 

 like Asclepias. 



L A. COnnivens, Gray. Stem stout, simple, pube.scent above; leaves 

 oblong or ol)long-obovate, the upper smaller and lanceolate; umbels 3-6, 

 6-9-flowered, pul)escent ; flowers large, greenish ; leaves of the crown twice 

 as long as tlie gynostegium. — Wet pine barrens, Florida and Georgia. June - 

 July. — Stem l°-2° high. Leaves r-2' long. Corolla 8"- 10" wide. 



5. ASCLEPIODORA, Gray. 



Calyx .'j-parted. Corolla rotate. Leaves of the crown s])reading, longi- 

 tudinally crested within. Anthers with thickened margins, menil)ranous at 

 the summit. Gynostegium sessile, rolleu-grains pear-shaped, longer than 

 the .stalk. 



* Crown leaves (vciuite-xpreadinf/, crested above the middle, incurved at the point : 

 (tutliers rounded at the base, as long as the (fi/noste</ium. 

 1 . A. viridis, Gray. Closely pubescent ; stem angular, often branching ; 

 leaves alternate, oblong, short-petioled ; umbels corymltose, often compound; 

 corolla large, greenish ; leaves of the crown oldong, shorter than tlie nearly 

 sessile gynostegium. — Dry soil, Florida to South Carolina. July. — Stem 

 1°- 1^^ li'gli. leafy to the summit. Leaves 3' -4' long. Corolla 1' wide. 



