206 VAKIETIES OF CUPRESSUS LAWSONIANA. 



Cupressus Lawsoniana, Murray in Edinb. new Phil. Journ. n. s. I. 292, with 

 fig. (1855). Hooker fil in Bot, Mag. t. 5581 (1866). Hoopes, Evergreens, 342 

 with fig. Lawson, Pinet. Brit. III. 191, with figs. Gordon, Pinet. ed. II. 86. 

 Masters in Journ. R. Hort. Soc. IV. 205 ; and Journ. Linn. Soc. XXXI. 353. Sargent, 

 Silva N. Amer. X. 119, t. 531. 



C. attenuata, Gordon, Pinet, ed. II. 79 (1875). 



Chamaecyparis Lawsoniana, Parlatore, D. C. Prodr. XVI. 464 (1868). Brewer 

 and Watson, Bot. Califor. II. 114. Beissner, Nadelholzk. 70, with fig. 



C. Boursieri, Carriere, Traite Conif. ed. II. 125. 



Eng. Lawson 's Cypress. Amer. Port Orford Cypress. Fr. Cyprus de Lawson. 

 Germ. Lawson's Lebensbaumcypresse. Ital. Cipresso di Lawson. 



The abnormal forms of Cupressus Lawsoniana that have originated in 

 seed beds or from "branch sports" (Sportzweige), and which have been 

 named and distributed by horticulturists, are exceedingly numerous. 

 Those described in the following pages are more or less distinct 

 and highly appreciated as decorative plants for the lawn and small 

 gardens ; they admit of being grouped into two series, of which one is 

 characterised by difference in habit and the other by colour, but as 

 difference in habit is sometimes accompanied by difference in colour, 

 there are forms which may be placed with equal right in either series. 



Varieties distinguished chiefly ~by habit, 



var Allumi (syn. Fraseri). 



A slender but dense columnar form with short branches and rigid erect 

 branchlet systems clothed with glaucous green foliage with a steel-blue 

 tint peculiar to this variety. It is a modification of an older variety 

 named strida. 



var. Bowleri. 



The branchlets and their ramifications more slender, more pendulous 

 and of a darker green than the common form ; habit dense and compact. 



var. compacta. 



A dwarf, dense, conical low tree or shrub with decurved glaucous 

 terminal growths ; one of the most distinct of the dwarf varieties. 



var. erecta. 



A dense fastigiate form with a tapering or flame-shaped outline ; all 

 the branches erect and much crowded, the lateral branchlets much 

 shorter in proportion to their axial growths than in the common form. 

 erecta viridis has the branchlet systems and foliage of a lighter 

 and brighter green. 



var. ericoides. 



The branchlets and young growths very slender and of a bright grass- 

 green ; the small scale-like leaves free and erect, simulating the foliage 

 of some of the Cape Heaths. 



var. filifera. 



The terminal growths of the youngest branchlet systems greatly 

 elongated and attenuated at the extremity ; the lateral branchlets more 

 sparingly ramified. 



var. flliformis. 



A singular variety in which the branches are excessively elongated at 

 the expense of the lateral growths which are distant and much 

 shortened. Of sub-pendulous habit, simulating the Whipcord Thuia. 



