SYNOPSIS OF NATURAL ORDERS. 



xxiif 



71. PoIygonaceoB. — Herbs or shrubs. Leaves simple, alternate with 

 sheathing stipules. Flowers small, hermaphrodite or unisexual. Ovary 

 superior, ovule 1> erect. Seeds albuminous. Embryo straight or slightly 

 curved. 



26. AsARALES. — Flowers unisexual or Lerraaphrodite. Perianth 

 of 3-5 sepals, sometimes united and irregular, curved, tubular or 

 free. Corolla 0. Stamens extrorse, adherent to the style or pistillode. 

 Ovary of several carpels with axillary placentas and numerous 

 ovules. Albumen Seshy or horny, embryo straight, 



72. AristolochiacecB. — Erect shrubs or twiners. Leaves alternate. 

 Usually simple. Flowers hermaphrodite, often large and dark lurid 

 coloured, curved trumpet-shaped or perianth-lobes free. Seeds numerous. 

 Albumen copious. Embryo small, straight. 



27. PiPERALES. — Flowers often unisexual. Perianth 0. Stamens 

 2-6, hypogynous. Ovary sessile, ovule 1, erect. Fruit small, often 

 a berry. Albumen copious. Embryo minute. 



73. Piper acecB, — Herbs or shrubs often aromatic and climbing. 

 Leaves simple, alternate. Flowers minute, usually in leaf opposed spikes^ 

 Bracts often peltate, sessile or stalked. 



28. Laurales. — Flowers usually unisexual. Perianth green or 

 coloured, regular. Ovary superior, (inferior in Gyrocarpese) 1- 

 celled ; ovule solitary ^ stigma 1. Albumen present or ; embryo 

 straight. 



74. MyristicacecB. — Trees or shrubs. Leaves alternate, entire. Flow- 

 ers small, dioecious. Stamens united in a column. Albumen ruminate. 

 Fruit fleshy, 2-valved. Seed arillate. 



75. Laurwem. — Trees or shrubs.. {Oassytha a parasite.) Leaves 

 simple, alternate or opposite. Flowers hermaphrodite or unisexual. 

 Anther-cells opening by recurved valves. Ovary 1-celled, ovule Ij 

 pendulous. Albumen 0. 



29. Daphnale 55.— Flowers usually hermaphrodite* Perianth 

 green or coloured, often tubular. Ovary 1, rarely 2 -celled, superior,, 

 ovule solitary, pendulous or almost erect in each cell stigma !• 

 Albumen Q ; embryo straight. 



76. ThymelacecB, — Trees or shrubs with tenacious bark^ Leaves 

 alternate or opposite. Flowers hermaphrodite. Stamens definite. Ovary 

 free, 1-celled, 1-ovuled. Ovule pendulous. Albumen fleshy or 0. 



77. EloeagnacecB. — Trees or shrubs, often scandent and covered more 

 ©r less with silvery scales. Leaves alternate or opposite, entire. Flowers 

 hermaphrodite. Base of perianth- tube persistent round the free 1-celled 

 ovary. Ovule 1, erect. 



30. Santalales — Flowers hermaphrodite or diclinous. Perianth 

 usually conspicuous, coloured, valvate. Ovary 1, many celled ; 



