ASCLEPIADACE^. (mILKWEED EAMILY.) 73 



2. TRIENTALIS, L. Star-flower. 



Cal3\T and wbecl-shaped corolla about T-parted. Filaments slender, spreading. — Low 

 and glabrous i)erennials, -witb simple stems, Mliich bear a whorl of leaves at the summit, 

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



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

 from a little tuber. 



3. ANAGALLIS, Toum. Pimpernel. 



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

 herbs, -vvith ojjpositc 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 campanulate, 5-cleft; the lobes ovate, petal-like. Filaments rather shorter than 

 the calyx. Style lUiform; stigma capitate. 



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

 the top; leaves commonly opposite, fleshy, oblong, half an inch or less long, minutely 

 dotted; flowers axillary., almost sessile, white or j^urplish. 



OiiDER OLEACI3.Sj is represented by Fraxinus Oregana, Xutt., the Oregon Ash. 



Order APOCYNACE.ZEj is represented by Apocynum cannabiniim, L. (Lndian 

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

 tiower^, the sepals, petals and stamens live, 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. androscumifoliunif 

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



Order 3G. ASCLEPIADACEiE. 



Herbs with milky juice, no stij)ulcs, and regular flowers, with the parts in flves, except 

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

 mens are attached; the latter (in our genera) Avith hood-like appemlages. Leaves entire, 

 generally opjMwite, sometimes whorleil. Flowers usually in simple umbels. Fruit a 

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



1. ASCLEPIAS, L. Milkweed. 



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

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

 rises the subulate and usually falcate hern; authera with thin scarious tips inflexed 



