SYNOPSIS OF THE FAMILIES Xlll 



XXIV. Zygophyllaceae (p. 630). Flowers perfect; calyx 5-lobed; petals 5; fruit capsular. 

 becoming fleshy; leaves opposite, pinnate, with stipules, persistent. 



XXV. Malpigiaceae (p. 631). Flowers usually perfect rarely dimorphous; calyx 5-lobed; 

 petals 5, unguiculate; fruit a drupe or samara; leaves opposite, simple, entire, persistent; 

 often with stipules. 



XXVI. Rutaceae (p. 633). Flowers unisexual or perfect; fruit a capsule (Xanthoxylum) , a 

 samara (Ptelea), of indehiscent winged 1-seeded carpels (Helietta), or a drupe (Amyris); 

 leaves alternate or opposite, compound, glandular-punctate, without stipules, persistent or 

 rarely deciduous (0 in Canotia). 



XXVII. Simaroubaceae (p. 641). Flowers dioecious, calyx 5-lobed; petals 5; fruit drupa- 

 ceous (Simarouba), baccate (Picramnia), a samara (Alvaradoa); leaves alternate, equally 

 pinnate, without stipules, persistent. 



XXVIII. Burseraceae (p. 645). Flowers perfect; calyx 4 or 5-parted; petals 5; fruit a 

 drupe; leaves alternate, compound, without stipules, deciduous. 



XXIX. Meliaceae (p. 648). Flowers perfect; calyx 5-lobed; petals 5; fruit a 5-celled de- 

 hiscent capsule; leaves alternate, equally pinnate, without stipules, persistent. 



XXX. Euphorbiaceae (p. 649). Flowers perfect; calyx 4-6-parted (Drypetes), 3-lobed 

 (Hippomane), or (Gymnanthes) ; petals 0; fruit a drupe (Drypetes and Hippomane), or a 

 3-lobed capsule (Gymnanthes). 



XXXI. Anacardiaceae (p. 655). Flowers usually unisexual, dioecious or polygamo-dice- 

 cious (Pistacia without a calyx, and without a corolla in the North American species) ; fruit a 

 dry drupe; leaves simple or compound, alternate, without stipules, deciduous (persistent in 

 Pistacia and in one species of Rhus). 



XXXII. Cyrillacese (p. 665). Flowers perfect; calyx 5-8-lobed; petals 5-8; fruit an 

 indehiscent capsule; leaves alternate, without stipules, persistent (more or less deciduous in 

 CyriUd). 



XXXIII. Aquifoliaceae (p. 668). Flowers polygamo-dicecious ; calyx 4 or 5-lobed; petals 

 5; fruit a drupe, with 4-8 1-seeded nutlets; leaves alternate, simple, with stipules, persistent or 

 deciduous. 



XXXIV. Celastraceae (p. 674). Flowers perfect, polygamous or dioecious; calyx 4 or 

 5-lobed ; petals 4 or 5 ; fruit a drupe, or a capsule (Evonymus) ; leaves simple, opposite or al- 

 ternate, with or without stipules, persistent (deciduous in Evonymus). 



XXXV. Aceraceae (p. 681). Flowers dioecious or monoeciously polygamous; calyx usually 

 5-parted; petals usually 5, or 0; fruit of 2 long-winged samara joined at the base; leaves oppo- 

 site, simple or rarely pinnate, without or rarely with stipules, deciduous. 



XXXVI. Hippocastanaceae (p. 702). Flowers perfect, irregular; calyx 5-lobed; petals 4 or 

 5, unequal; fruit a 3-celled 3-valved capsule; leaves opposite, digitately compound, long- 

 petiolate, without stipules, deciduous. 



XXXVII. Sapindaceae (p. 711). Flowers polygamous; calyx 4 or 5-lobed; corolla of 4 or 

 5 petals; fruit a berry (Sapindus and Exothea), a drupe (Hypelate), or a 3-valved capsule 

 (Ungnadia) ; leaves alternate, compound, without stipules, persistent, or deciduous (Ungna- 

 dia). 



XXXVIII . Rhamnaceae (p. 718) . Flowers usually perfect ; calyx 4 or 5-lobed ; petals 4 or 5 

 (0 in Reynosia, Condalia, and Krugiodendrori) ; fruit drupaceous; leaves simple, alternate 

 (mostly opposite in Reynosia and Krugiodendrori), with stipules, persistent (deciduous in some 

 species of Rhamnus) . 



XXXIX. Tiliaceae (p. 732). Flowers perfect; sepals and petals 5; fruit a nut-like berry; 

 leaves simple, alternate, mostly oblique at base, with stipules, deciduous. 



XL. Sterculiaceae (p. 749). Flowers perfect; calyx 5-lobed; petals 0; fruit a 4 or 5-valved 

 dehiscent capsule; leaves simple, alternate, with stipules, persistent. 



XLI. Theaceae (p. 750). Flowers perfect; sepals and petals 5; fruit a 5-celled woody de- 

 hiscent capsule, loculicidally dehiscent; leaves simple, alternate, without stipules, persistent 

 or deciduous. 



XLII. Canellaceae (p. 753). Flowers perfect; sepals 3; petals 5; filaments united into a 

 tube; fruit a berry; leaves simple, alternate, without stipules, persistent. 



XLIII. Koeberliniaceae (p. 754). Flowers perfect; sepals and petals 4, minute; leaves 

 bract-like, alternate, without stipules, caducous. 



XLIV. Caricaceae (p. 755). Flowers unisexual or perfect; calyx 5-lobed; petals 5; fruit 

 baccate ; leaves palmately lobed or digitate, alternate, without stipules, persistent. 



