CELASTRACEAE 



Canotia. Mohavethorn 



Canotia holacantha Torr. 



HABIT. An odd, leafless shrub or small shrublike tree 20-30 

 feet high; trunk short and stocky; branches rushlike. 



FLOWERS. Regular; perfect; small; in 3-7-flowered fascicles; 

 calyx 5-lobed, persistent, minute; corolla 5-petaled, white. 



FRUIT. Dry, woody, ovoid, acuminate capsule 1 inch long; 

 crowned with subulate, persistent style; 5-valved, splitting open 

 at top. Seed: solitary or paired; about % inch long. 



TWIGS. Slender, rushlike, round, alternate, glabrous, rigid, 

 and spine-tipped; pale green and carrying on photosynthetic 

 functions; characteristic, black, triangular, cushion-like proc- 

 esses located at base of each twig and flower cluster. 



BARK. Light brown and deeply furrowed. 



WOOD. Heavy; hard; close-grained; light brown; diff'use- 

 porous; unimportant. 



SILVICAL CHARACTERS. Intolerant; monotypic genus; 

 on dry, mountain slopes and mesas between 2,000-4,000 feet. 



Wahoo. Burning Bush 



Euonymus atropurpureus ] acq. 



This widespread shrubby species reaches tree size in Arkansas 

 and eastern Texas. It can be distinguished by its winged twigs; 

 simple, opposite, petioled leaves; 4-parted flowers; and fleshy, 

 capsular fruit enclosed in a thin scarlet aril. The western wahoo, 

 E. occidentalis Nutt. is found in the Pacific Coast states. 



CYRILLACEAE 



Swamp Cyrilla 

 Cyrilla racemiflora L. 



This small tree of wet sites in the Coastal Plain from Vir- 

 ginia to Texas is characterized by simple, alternate, oblong, 

 entire, thick leaves 2-3 inches long; small, regular, perfect, 

 white flowers in slender axillary racemes; and a 2-celled, ovoid, 

 unwinged capsule Vq inch long. 



The buckwheat-tree, Cliftonia monophylla (Lam.) Britt., is 

 a similar species of the same habitat. It diff'ers in having glandu- 

 lar-punctate leaves; flowers in terminal racemes; and a 3-4 

 celled capsule H inch long with 2-4 wings. 



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