CONIFERS. (PINE FAMILY.) 459 



1. C. sphseroidea, Spach. (WHITE CEDAR.) Brauchlets compressed, 

 crowded, distichous ; leaves ovate, imbricated iii 4 rows, with a roundish gland 

 ou the back ; auther cells 2 under each scale ; coues small. Swamps, 

 Florida, and northward. April. A middle-sized tree with fibrous bark, 

 arid light durable wood. Branches spreading. Coues 3" -4 "in diameter, 

 borne ou short scaly stalks. 



7. TAXODIUM, Richard. CYPRESS, BALD CYPRESS. 



Flowers monoecious. Sterile aments small, in a long drooping spiked pan- 

 icle. Scales peltate. Anther cells 2 -5, opening lengthwise. Fertile aments 

 single or by pairs, with the peltate scales 2-ovuled. Cone globular. Scales 

 very thick, angular, slender-stalked, separating at maturity. Seeds 3-augled, 

 wingless. Cotyledons 6-9, linear. Trees, with distichous deciduous leaves. 



1. T. distichum, Rich. Leaves alternate, opposite, or whorled, on very 

 numerous short and slender deciduous brauchlets, linear, acute, 2-ranked or 

 imbricated. (Cupressus disticha, L.) Pouds and deep swamps in the lower 

 districts. Feb. - March. A very large tree, with pale smoothish bark, light 

 durable wood, and few fastigiate branches at the summit. Leaves 4" -6" 

 long. Cones f'-l'in diameter. Attached to the roots are hollow conical 

 knobs called Cypress-Knees. 



8. THUYA, Tourn. ARBOR-VIT.E. 



Flowers monoecious. Aments small, terminal. Anther cells 4, with a scale- 

 like connective. Carpellary scales imbricated in four rows, with two erect 

 ovules at the base. Cone oblong, the few scales imbricated, expanding at 

 maturity, persistent. Seed winged. Cotyledons 2, oblong. Trees or shrubs, 

 with scale-like imbricated persistent leaves. 



1- T. OCCidentalis, L. (ARBOR-VIT/E.) Branches flat, distichous; 

 leaves ovate, obtuse, with a gland on the back, imbricated in four rows; 

 cones oblong, nodding, with the outer scales oblong, obtuse ; seeds broadly 

 winged, emarginate at each end. Rocky banks on the mountains of Caro- 

 lina, and northward. A small or middle-sized tree. Cones % long. 



9. TAXUS, Tourn. YEW. 



Flowers dioecious, axillary ; the sterile ones in globular few-flowered aments. 

 Anther cells 3-8, inserted under the peltate scale. Fertile flowers solitary, 

 scaly-bracted, consisting of a single ovule on a cup-shaped disk, which be- 

 comes large and berry-like in fruit, and surrounds the nut-like seed. Embryo 

 in the axis of mealy albumen. Trees or shrubs, with scattered branches, 

 linear rigid distichous leaves, and scaly buds. 



1. T. Floridana, Nutt. Leaves narrowly linear, mucronate, conspicu- 

 ously petioled (about 9" long), the outer margin revolute ; fruit not abundant ; 

 the fleshy disk of the seed bright red. Low ground along the east bank of 

 the Apalachicola River, Middle Florida. A small tree 10 -20 high. 



