The Trees of Texas 145 



2. Nyssa aquatica (L.). 6um. A large, narrow topped 

 tree with dark brown, fissured bark -and reddish brown twigs. 

 Leaves thick, firm, ovate to elliptic, pointed at the apex, entire 

 or with angular teeth on the margin, dark green and lustrous 

 above, paler and hairy beneath. Flowers dioecious, the stam- 

 inate in clusters, the pistillate solitary. Fruit a purple drupe. 



In swampy places Virginia to Missouri, Florida and Texas. 

 In Texas it extends to the valley of the Nueces River. 



SVIDA Ofiz. Cornel. Dogwood. 



Svida stricta (Lam.) Small. Stiff Cornel. Usually a shrub 

 but sometimes a small tree w r ith stiff ascending branches, thin 

 gray bark and reddish twigs. Leaves opposite, elliptic, oval 

 to ovate, long pointed at the apex mostly entire, margined 

 somewhat hairy on both sides. Flowers perfect in terminal 

 clusters. Fruit a pale blue subglobose drupe. 



In swampy places Virginia to Missouri, Florida and Texas. 



CYNOXYLON Rafinesque. 



1. Cynoxylon floridum (L.) Raf. Flowering Dogwood. A 

 small round topped bushy tree, 15-25 high with dark scaly 

 bark, reddish gray branches. Leaves elliptic to oval, 3'-6' 

 long, l%'-2' wide, with prominent curved primary veins, hairy 

 on both sides, pointed at the -apex. Flowers in dense clusters, 

 surrounded by a showy involucre consisting of four white 

 bracts. Fruit ovoid red drupes borne in clusters. 



In woods, Massachusetts to Ontario and Missouri south to 

 Florida, Texas and Mexico. A very popular ornamental tree 

 throughout its range. 



ERICACEAE De Condolle. The Heath Family. 

 Arbutus (Tournefort) L. Madrona. 



Arbutus texana Buckley. Texan Madrona. A shrub or 

 small evergreen tree 20 high with short, much branched trunk, 

 furrowed, brown bark and red twigs. Leaves ovate to ob- 

 long, l'-3' long, 2/3'-l 1 /o' wide, thick, and mostly entire or 



10-Trees 



