ASCLEPIADACEJE. (mTLKWEED EAMILY.) 73 



2. TRIENTALIS, L. Star-flower. 



Calyx and -whcel-sliaped corolla aljout 7-partcd. Filaments slender, spreading. — Low 

 and glabrous jjcrennials, with simi)le steins, which bear a whorl of leaves at the summit, 

 in their axils slender peduncles suppoiiing star-shaped, white or pinkish flowers. 



1. T. Europaea, L., Var. latifolia, Torr. Stems 4 to 8 inches high, sjiringing 

 from a little tuber. 



3. ANAGALLIS, Tourn. Pimpernel. 



Divisions of the rotate 5-parted corolla broad. Capsule globose. — Spreading, prostrate 

 herbs, with oi)posite or whorled leaves and axillary flowers. 



1. A. arvensis, L. Leaves ovate, sessile, shorter than the peduncles, sometimes in 

 threes; flowers scarlet, purple, or nearly salmon-colored, rarely blue. 



4. GLAUX, L. Sea Milkwort. 



Calyx campanulatc, 5-cleft; the lubes ovate, petal-like. Filaments rather shorter than 

 the calyx. .Style filiform; stigma cajjitate. 



1. G. raaritima, L. Low, glabrous; branching stems 3 to 9 inches high, leafy to 

 the toj); leaves commonly opposite, fleshy, oblong, half au inch or less long, minutely 

 dotted; flowers axillary, almost sessile, white or purplish. 



Or.DER OLEACE1.Sj is represented by Fraxinus Oregann, Nutt., the Oregox Asn. 



OnuER APOCYNACE.ffl is represented by Apoci/num cannabinum, L. (Indian 

 Hemp.) An herb with milky juice, tough bark, opposite entire exstipulate leaves, regular 

 flowers, the sepals, petals and stamens five, the latter borne on the corolla alternate with 

 its lobes and conniving around the stigma. The commonly sessile, oblong leaves often 3 

 or 4 inches long. The greenish-white small flowers in close cymes. A. androsaemifolium, 

 L., iias smaller ovate leaves, conspicuously petioled; flowers rose-colored. 



Oedeb 3G. ASCLEPIADACEiE. 



Herbs with milky juice, no stipules, and regular flowers, with the parts in fives, except 

 that there arc two carpels with distinct ovaries and a common stigma to which the sta- 

 mens are attached; the latter (in our genera) with hood-like aj^pendages. Leaves entire, 

 generally opposite, sometimes whorled. Flowers usually in simple umbels. Fruit a 

 pair of follicles. Seeds almost always with a coma of silky down. 



1. ASCLEPIAS, L. INIiLKWEED. 



The calyx and corolla deeply 5-parted; the small divisions reflexed; filaments short, 

 crowned behind each anther with a conspicuous hood from the cavity of which 

 rises the subulate and usually falcate hem; anthers with thin scarious tips inflexed 



