XU SYNOPSIS OF THE FAMILIES 



VI. Myricaceee (p. 146). Flowers monoecious or diceeious ; fruit a dry drupe, covered 

 with waxy exudations ; leaves simple, alternate, resinous-punctate, persistent. 



VII. Leitneriaceae (p. I.jO). Flowers diu3cious, the staminate without a calyx; ovary 

 superior ; fruit a compressed oblong drupe ; leaves alternate, simple, without stipules, 

 deciduous 



VIII. Salicaceae (p. l.">2). Flowers diceeious, without a calyx. Fruit a 2-4-valved 

 capsule. Leaves simple, alternate, with stipules, deciduous. 



IX. Betulaceae (p. 189). Flowers moncecious ; fruit a nut at the base of an open leaf- 

 like involucre (Carpinus), in a sack-like involucre (Ostrya), in the axil of a scale of an 

 anient (Betula), or of a woody strobile (Alnus) ; leaves alternate, simple, with stipules, 

 deciduous. 



X. Fagaceee (p. 210). Flowers monoecious ; fruit a nut more or less inclosed in a woody 

 often spiny involucre ; leaves alternate, simple, with stipules, deciduous (in some species of 

 Quercus and in Castanopsis and Pasania persistent). 



Section 2. Flowers unisexual (j^erfect in Ulmiis) ; calyx regular, the 

 stamens as many as its lobes and opposite them ; ovary superior, l-cellecl ; 

 seed 1. 



XI. Ulniaceae (p. 287). Fruit a compressed wing-ed samara (Ulmus) or a drupe (Celtis) ; 

 leaves simple, alternate, with stipules, deciduous. 



XII. Moracese (p. 302). Flowers in ament-like spikes or heads; fruit drupaceous, 

 inclosed in the thickened calyx and united into a compound fruit, oblong and succulent 

 (Morus), large, dry and g'lobose (Toxylon), or immersed in the fleshy receptacle of the 

 flower (Fieus) ; leaves simple, alternate, with stipules, deciduous (persistent in Ficus). 



Section 3. Flowers usually perfect ; calyx 5-lobed ; ovary superior, 1-celled ; 

 fruit a nutlet inclosed in the thickened calyx ; leaves simjile, persistent. 



XIII. Polygonaceae (p. 311). Leaves alternate, their stipules sheathing- the stems. 



XIV. Nyctaginaceae (p. 313). Leaves alternate or opposite, without stipules. 



Subdivision 2. Petals. Flowers with both calyx and corolla {without 

 a corolla in Lauraceoe, in Liquidamhar in Hamamelidacece, in Cercocarjous 

 in Rosacece, in EuphorhiacecB, in some species of Acer, in Reynosia, Con- 

 dalia, and Krugiodendron in Rhamnacece, in Fremmitodendron in Sterculia- 

 cece, in Chytracidia in Myrtacece, and in Conocarpus in Combretacece). 



Section 1. Polypetalae. Corolla of separate petals. 



A. Ovary superior {partly inferior in Haniamelidacece ; inferior in Malus, 

 Sorhus, Cratcegus, and Amelanchier in Rosacece). 



XV. Magnoliaceae (p. 315). Flowers perfect ; sepals and petals in 3 or 4 rows of 3 

 each ; fruit cone-like, composed of numerous cohering carpels ; leaves simple, alternate, 

 their stipules inclosing the leaf -buds, deciduous or rarely persistent. 



XVI. Anonaceae (p. 326). Flowers perfect ; sepals 3 ; petals 6 in 2 series ; fruit a 

 pulpy berry developed from 1 or from the union of several carpels ; leaves simple, alter- 

 nate, without stipules, deciduous or persistent. 



XVII. Lauraceae (p. 329). Flowers perfect or unisexual; corolla 0; fruit a 1-seeded 

 drupe or berry ; leaves simple, alternate, punctate, without stipules, persistent (deciduous 

 in Sassafras). 



XVIII. Capparidaceae (p. 338). Flowers perfect ; sepals and petals 4 ; fruit baccate, 

 elongated, dehiscent; leaves alternate, simple, without stipules, persistent. 



XIX. Hamamelidaceae (p. 339). Flowers perfect or unisexual ; sepals and petals 5 

 (corolla in Liquidamhar) ; ovary partly inferior ; fruit a 2-celled woody capsule opening at 

 the summit ; leaves simple, alternate, with stipules, deciduous. 



