31 



Thuja occidentalis albo-variegata Beissn. 

 Thuja oocidsntalis aureo-variegata Beissn. 

 Thuja occidentalis argentea Gord. 

 Thuja occidentalis alba Gord. 

 Thuja occidentalis little-gem Beissn. 

 Thuja occidentalis silver-queen Beissn. 



Thuja plicata Don. Giant Arborvitse. 



TlIUYA GIGANTEA Nutt. 



Range. — From coast of southern Alaska to northern California (Mendocino 

 County) ; eastward through British Columbia and northern Washington to northern 

 Idaho (Cceur d'Alene, Bitter Root, and Salmon River mountains) and Montana; 

 western slopes Rocky Mountains. 



Names in use. — Red Cedar (Idaho, Oreg., Wash.); Canoe Cedar 

 (Oreg., Wash.); Arborvitie (Cal.); Shingle wood (Idaho); Gigantic 

 Cedar (Cal.); Cedar (Oreg.); Gigantic Red Cedar (Cal. lit.); Western 

 Cedar; Gigantic or Pacific Red Cedar (Cal. lit.); Lobb's Arborvitae 

 (in cult. Eng.); Pacific Eed Cedar (Cal. lit.). 



VARIETIES DISTINGUISHED IN CULTIVATION. 



Thuja plicata gracillima (Beissn.) Sudw. 

 Thuja plicata atrovirens (Gord.) Sudw. 

 Thuja plicata aurescens (Beissn.) Sudw. 

 Thuja plicata argenteo- versicolor Sudw. 

 Thuja plicata flava Sudw. 

 Thuja plicata variegata Carr. 

 Thuja plicata compacta (Carr.) Beissn. 

 Thuja plicata llaveana Gord. 

 Thuja plicata minima Gord. 

 Thuja plicata erecta (Gord.) Sudw. 

 Thu^ a plicata pumila (Gord.) Sudw. 

 Thuja plicata penduliformis Sudw. 

 Thuja plicata cristatiformis Sudw. 



CUFRESSUS Linn. 

 Oupressus macrocarpa Hartw. Monterey Cypress. 



Range. — Southern California coast (from Cypress Point to south shores of Carmel 

 Bay .and on Point Lobos). 



Name in use. — Monterey Cypress (Cal.) 



VARIETIES DISTINGUISHED IN CULTIVATION. 



Cupressus macrocarpa angulata Lemm. 

 Cupressus macrocarpa lambertiana (Carr.) Mast. 

 Cupressus macrocarpa crippsii Mast. 



Cupressus goveniana Gord. Gowen Cypress. 



Range. — California coast region (Mendocino County to San Diego County). 



Name in use.— North Coast Cypress (Cal. lit.). 



VARIETIES DISTINGUISHED IN CULTIVATION. 



Cupressus goveniana parva Sudw. 

 Cupressus goveniana huberiana Carr. 

 Cupressus goveniana glaucifolia Sudw. 



