CHECK LIST OF FOREST TREES 181 



Ehus vernix Linnaeus. Poison Sumach. 



Range. — Quebec and northern New England to northern and southern 

 (R. M. Harper) Florida (Highlands County) and Alabama; west to Ontario, 

 southeastern Minnesota, central-eastern Missouri, and eastern Texas (Neches 

 River). 



Note on nomenclature. — Formerly designated as Rhus venenata de Candolle. 



NAMES IN USE 



Poison Sumach (Vt., N. H., Mass., Swamp Sumach (R. I., N. Y., N. J., 



R. I., Conn., N. Y., N. J., Del., Tenn., Minn.) 



N. C, S. C, Ala., Miss., La., Mo., Sumach (R. I.). 



Iowa, Wis., Mich., Minn., Ohio, Poison Oak (La.). 



Ont.). Poison Ash (Vt., Pa.). 



Poison Elder (Vt., Mass., R. I., N. Y. Poisonwood (Tenn.). 



Del., S. C, Ga., Ala., Miss., La., Poisontree. 



Mo., Minn.). Thunderwood (Ga.). 



Poison Dogwood (N. H., Vt., Conn., Swamp Dogwood. 



N. J., Pa., D. C, Mo., Mich., Minn.). 

 Dogwood (Vt., Mass., R. I., Wis., 



Mich., Iowa, Minn., La.). 



Ehus integrifolia (Nuttall) Bentham and Hooker. 4 Mahogany Sumach. 



Range. — Coast of southern California (from Santa Barbara) to Lower Cali- 

 fornia (Magdalena Bay); Santa Barbara and Cedros Islands. 



NAMES IN USE 



Mahogany (Calif.). Lentisco (Calif.). 



California Mahogany (lit.). Sour Oak (Calif.). 



California Sumach. Lemonade Berry (Calif.). 



Sour Berry. Mahogany Sumach. 

 Western Sumach (lit.). 



Rhus integrifolia serrata Engler. Mahogany Sumach. 



Range. — Within the range of the species. 



NAME IN USE 



Mahogany Sumach 



Rhus laurina Nuttall. 5 Laurel Sumach. 



Range. — Southern California (Santa Barbara and southward) ; Arizona (Pine 

 Creek Canyon — vicinity of Natural Bridge; Verde River C nyon — vicinity of 

 Tinsley Ranch; Oak Creek Canyon); Lower California (Cape region). 



NAME IN USE 



Laurel Sumach 



MANGIFERA Linnaeus 



Mangifera indica Linnaeus. Mango. 



Range. — Native of tropical Asia, but widely cultivated in other tropical 

 countries. In southern Florida growing spontaneously on hammocks and on a 

 number of the Keys, to which it has escaped from cultivation. 



nam . IN USE 



Mango 



♦ Britton and Sbafer (op. cit., f.12) designate this tree as Neostyphonia integrifolia (Nuttall) Shafer, based 

 on Siyphonia integrifolia Nuttall. Neostyphonia was created because Nuttall's genus Styphonia is invalid 

 The writer prefers, however, to retain this as a species of Rhus. 



J Usually a broad much-branched shrub 4 to 5 feet high, but in protected places with rich soil it forms a 

 central stem 12 to 18 feet high and 10 to 12 inches in diameter. 



