64 



The Hemlocks 



ranked, except in one species, stomatiferous on the under side only, except in one 

 species, and contain a single resin-duct near the epidermis of the under side; they 

 are articulated to short, persistent woody stalks, from which they separate on 

 dr}'ing, but in hfe persist for several years. The flowers, which are monoecious, 

 appear in early spring from buds formed the previous season. The staminate 

 are axillan,-, subglobose, and short- stalked; the many short-stalked anthers are 

 two-celled, nearly globular, opening crosswise, the connective projecting above 



Fig. ^o. — Canadian Hemlock, New York Botanical Garden. 



the sacs into a short pointed tip. The pistillate flowers are terminal, short- 

 stalked, oblong; the broad scales bear two ovules at the base; their bracts are 

 inconspicuous. The cones, ripening the first season, are usually pendulous, ovoid 

 to oblong, blunt-pointed, consisting of persistent loosely overlapping, concave, thin, 

 woody scales, which are somewhat smaller and sterile toward the ends of the cone; 

 the bracts are much shorter than the scales; the seed is ovate-oblong, flattened, 

 amply winged, crustaceous, with fleshy endosperm and 3 to 6 cotyledons. 



