VARIETIES OF THUIA OCCIDENTALS. 247 



ill decussate pairs 011 their stems, and which in winter assume a 

 brownish tint like the adult leaves. 



T. occidentalis ericoides, Beissner. Retinispora dubia, Carriere.* 



var. lutea (syn. elegantissimd). 



A low tree of pyramidal or columnar habit in which the branchlet 

 systems of the current year with their foliage are bright yellow above 

 and orange-yellow below ; it differs in habit and colour from the 

 variety Vervaeneana. lutea nana is a diminutive sub-variety of the 

 same colour. 



T. occidentalis lutea, Hort. George Peabody's Arbor Vitre, Hort. Amer. 



var. pendula. 



In this variety the primary branches are more slender than in the 

 common form and bent downwards at a short distance from their 

 insertion, and the branchlets much tufted. 



var. plicata. 



A smaller and denser tree with shorter branches; branchlet systems 

 rigid, and taking an erect and parallel position like those of TJiuia 

 oriental-is ; the foliage distinctly glandular, and of a brownish green tint 

 almost peculiar to this variety. plicata argenteo- and aureo- 

 variegata are variegated forms, the first with white, the second with 

 yellow branchlets. 



T. occidentalis var. plicata, Masters in Gard. Chron. XXI. ser. 3 (1897) p. 258, 

 Avith tigs. T. plicata, Parlatore, D. C. Prodr. XVI. 457 (not Don). Beissner, 

 Nadelholzk. 44 (not Don). 



var. Spaethii. 



A monstrous form in which the youngest branchlets are much 

 crowded and clothed with primordial leaves thicker in texture than 

 the ordinary ones ; these branchlets are succeeded by acutely tetragonous 

 branchlets sparsely ramified and clothed with scale-like, sharply-pointed 

 leaves. 



T. occidentalis var. Spaethii, Hort. Riippel fide Spath. in Cat. 



var. Vervaeneana. 



A smaller and denser tree than the common form and one of the 

 most distinct and ornamental of all the varieties of the American Arbor 

 Vitse. During the groAving season, all the branchlets, which are more 

 slender than in the species, are tinged Avith a deep golden-yelloAv, which 

 changes in winter to a brownish-orange, and finally to the normal 

 green of the species, when they are succeeded by a neAv growth of 

 yelloAV sprays. 



var. Wareana. 



A IOAV tree of denser habit than the type with short branches that 

 are at first horizontal, then ascending; branchlets numerous with close- 

 set ramifications, frequently erect and parallel as in Thuia orientalis; 

 foliage of a deeper, brighter green than that of the common form. 

 Wareana aurea (syn. plicata aurea) has many of the youngest 



* Thuia occidentalis ericoides, which should not be confounded with Cupressus thyoides 

 ericoides, has probably disappeared from British gardens. It originated in a nursery at 

 Frankfort, and is still cultivated in Germany. Ex 



