HARDY CONIFEROUS TREES 171 



seen at a short way off appears as if all aglow. 

 It is specially adapted for planting in swampy 

 ground, by the lake or pond side, or on small 

 islands, thriving under such conditions in a manner 

 that is quite surprising. The habit of growth 

 differs with the age of the specimen, young trees 

 up to 25 feet in height keeping to the almost 

 strictly pyramidal, while in many old specimens 

 throughout the country the spread of the head 

 is equal to, if not surpassing, that of the height. 

 The foliage is always of a light and air}^ appear- 

 ance, the pinnate leaves being arranged in hori- 

 zontal rows on each side of the mid-rib. They 

 vary in length even on the same twig, but are 

 usually fully half an inch long, closely arranged, 

 and somewhat arching, with the convex side out- 

 wards. The cones are not freely produced, but 

 home-grown specimens that I have collected are 

 three-quarters of an inch long, nearly the same 

 in greatest diameter, and bearing small three- 

 sided seeds. The Deciduous Cypress is remark- 

 able in producing root protuberances, known as 

 cypress knees, these sometimes in this country 

 reaching to 2 feet in height, particularly when 

 the tree is growing in a swampy situation. 



T. MucRONATUM, Tenore. (Synonyms : T. 

 Montezumae, Decaisne ; T. mexicanum, Carriere ; 

 T. distichum mexicanum, Gordon.) Mexico. — 

 This tree is amply distinct in cultivation from the 

 hardier and more widely grown T. distichum, but 

 with which it is often confused. It is of far more 

 refined growth than that species, if I may use the 

 expression, the branches and branchlets being 

 shorter, more slender, horizontally arranged, and 



