316 PENTANDRIA DrCYNUj 



Stem herbaceous, 2 — S feet liigb* Leaves almost tomentose on the 

 under surface, Cyines terminal. Flowers greenish. 



This is our most common species of Apocjnum. Grows in pas- 

 tures, fields, &c. but not verj abundantly. Columbia ; Mr. Herbe- 

 mont. 



May— iJ 



LYONIA. E. 



Hr. 



Massed pollinis lOjlseves, I Pollen masses 10, smooth, 

 pendulse. Corona stami- I pendulous. Stamineal 

 nea 0-phylla, foliolis pla. | croTCj;i 5 leaved, the leaves 

 nis, erectis. Stigma co- j flat, erect. Stigma co- 

 iiicum,bifidum. Corolla ] nical, S cleft. Corolla 1 

 monopetala, campanula- petalled, campanulate.. 

 ta. FollicuU IsBves, I Follicles smooth. 



i. Maritima. 



Muhl 



Ceropegia palustris, Pursh, 1. p. 184. 



Perennial. Stem herbaceous, branching, glabrous, climbing over 

 tushes and small marine plants. Leaves opposite, sessile, linear, 

 channelled, somewhat succulent, about an inch long. Umbels solita- 

 ly, axillary (or rather growing between the leaves), 9— 10 flowered. 

 Calyx small, 5 parted ; segments acute, erect. Corolla 5 parted j seg- 



inents lanceolate, very acute, glabrous, greenish, with the summits 



^r 



slightly reflected. Leaves of the stamineal crown oval, obtuse, white, 

 longer than the stigma, scarcely half as long as the corolla. Corpus- 

 cle conical, slightly furrowed, and cloven at the summit. Stamens, 

 styles, follicles and seed as in the Asclepias. Follicles very slender. 



Nearly allied to the Diplolepis of Brown. To the Ceropegia of that 

 author or even of Linnaus, it seems to have but little affinity. 



Grows in land occasionally overflowed by salt water. 



Flowers June — October. 



I have named this plant in honor of Mr. John Lyon, whose in- 

 defatigable and successful researches after the plants of the United 



ment this notice from American 



«iK 



ACERATES. C^C 



Massce polUnis iO,\^yes, 1 Pollen masses iO,smooth, 

 pendulae. Corona stami- | pendulous. Stamineal 

 «^a5-phylla; foliolis con- crown 5 leaved; leaves 

 Qavis, brevibus; angulis | concave short, appres- 



