76 MENISPERMACEjE. 



lous from the upper part of the ventral suture, conformed to 

 the cell, cymbiform ; the hilum a little below the micropyle. 

 Embryo in the axis and about two thirds the length of the 

 fleshy albumen, which it almost separates into two thin 

 plates, very thin and foliaceous, concave so as to conform to 

 the shape of the albumen, slightly pointed at the radicular 

 apex, which is also flat, divergently two-lobed at the other 

 extremity, thus heart-shaped. Its peculiar form is evidently 

 due to the lateral junction by their contiguous edges of the 

 cotyledons, which were laterally separated like those of Ana- 

 mirta Cocculus. 



Vine woody, climbing or twining : with alternate and ex- 

 stipulate palmately-veined and 3 — 5-lobed membranaceous 

 leaves (the lobes acuminate, sometimes wavy-toothed), cor- 

 date at the base, on long petioles. Flowers small, greenish- 

 white, in racemose panicles: peduncles supra-axillary, slender. 



Etymology. From xdXuJ, a hush, or covering, or fluwer-cvp, and Kapiros, 

 fruit ; a name evidently meant to designate the cup-shaped she]] of the fruit. 



Geographical Distribution. The single known species belongs to the 

 Southern States west of the Alleghanies. 



Note. A genus manifestly allied to Anamirta, and also to Cocculus 

 crispus. DC, judging from the analyses given by Colebrooke. 



PLATE 30. Calycocarpum Lyoni ; — leaf, panicle, &c, of a sterile 

 plant (from Texas, Mr. Charles Wright) ; natural size. 



1. A staminate flower, enlai 



2. Bracteole ; and 3, a sepal, enlarged. 



4. A stamen, enlarged ; inside view. 



5. A pistillate flower, enlarged. (Herb. Torrey; as also the following.) 



6. A pistil, more magnified. 



7. Drupe, natural size ; and 8, same, divided transversely. 



9. The putamen ; the excavated inner face turned to the eye. 



10. Section of the same through the sutures, cutting the seed and embryo. 



11. A transverse section of the putamen a little below the middle, passing 



through the two cotyledons lying separately in the thin albumen. 



12. Embryo, of the natural size, spread out nearly flat. 



