MYRTACE^E 



769 



CONSPECTUS OF THE ARBORESCENT GENERA OF THE UNITED STATES. 



Calyx closed in the bud by a lid-like deciduous limb; petals 0. 1. Calyptranth.es. 



Calyx 4 or 5-lobed with persistent lobes; petals 4 or 5. 2. Eugenia. 



1. CALYPTRANTHES Sw. 



Aromatic trees or shrubs, with terete or angled branchlets. Leaves complanate in the 

 bud, penniveined, petiolate. Flowers minute, in subterminal and axillary pedunculate 

 many-flowered panicles, their primary and secondary branches often racemose, the ultimate 

 branches cymose ; calyx-tube turbinate, produced above the ovary, closed in the bud by a 

 slightly 4 or 5-lobed lid-like orbicular limb, opening in anthesis by a circumscissile line, the 

 limb at first attached laterally, finally deciduous; disk lining the tube of the calyx; petals 

 2-5, minute, or 0; ovary 2 or 3-celled; ovules 2 or 3 in each cell, collateral, ascending, anat- 

 ropous. Fruit 2-4-seeded. Seed subglobose or short-oblong; seed-coat shining; coty- 

 ledons foliaceous, contortuplicate; radicle elongated, incurved. 



Calyptranthes with eighty species is confined to tropical America, with two species 

 reaching southern Florida. 



The generic name is from xaX^Trrpa and &v6t), in reference to the peculiar lid-like limb 

 which closes the calyx before the opening of the flower. 



CONSPECTUS OF THE ARBORESCENT SPECIES OF THE UNITED STATES. 



Leaves acuminate, pubescent below; petioles up to \' in length; inflorescence and young 

 branchlets covered with silky rufous tomentum. 1. C. pallens (D). 



Leaves abruptly pointed or obtuse at apex, glabrous; petioles not more than \' in 

 length; inflorescence and young branchlets glabrous. 2. C. Zuzygium (D). 



1. Calyptranthes pallens Griseb. 

 Ckytraculia Chytraculia Sudw. 



Leaves oblong or oblong-ovate, acuminate at apex, gradually narrowed and cuneate at 

 base, pellucid-punctate above, marked with dark glands below, when they unfold pink or 

 light red and covered with pale silky hairs, and at maturity coriaceous, dark green and 

 lustrous on the upper surface, coated with pale pubescence on the lower surface, 2|'-3' long 

 and ^'-f' wide, with a broad midrib orange-colored beneath; petioles stout, ' |' in length. 



Flowers sessile, |' long, in long-stalked many-flowered clusters 2^'-3' long and wide, cov- 

 ered like their bracts and the flower-buds with silky rufous pubescence, with slender divari- 



