Ix CLASSES, DIVISIONS, AND ORDERS. 



Class II. MONOCOTYLEDONES. 



Stem not separable into bark, wood, and pith ; of cellular 

 tissue witli vascular bundles embedded irregularly in it. Leaves 

 mostly alternate and sheathing, with pai'allel simple veins con- 

 nected by smaller transverse veins, rarely net-veined. Coty- 

 ledon one, or, if more, alternate. Floral whorls composed of 

 3 — 5 parts. 



Division 1. Dictyogen^. Leaves net-veined. Floral 



envelopes whorled S30 



Division 2. Florida. Leaves parallel-veined. Floral 



envelopes whorled or wanting 331 



Division 3. Glumifbr^. Leaves parallel-veined, per- 

 sistent. Floral envelopes imbricate, bractHke .... 378 



Division 1. DICTYOGENiE. 



80. TriUiacecs. Perianth inferior. Fl. perfect 330 



81. Dioscoreacei^. Perianth superior. Fl. dioecious. — 

 Twining plants 330 



Division 2. ELOEID./E. 

 * Perianth superior, petal-like. Syncarpous. 



82. Hydrocharidaceee. Dioecious. Fl. regular. Sep. 

 herbaceous. Pet. coloured. — Floating plants 331 



83. Orchidacece. Fl. irregular. Stam. 1 — 2, sessile, 

 adnate to central column, bearing the stigma 332 



84. IridacecB. Fl. regular, of 6 petal-like parts. Stam. 3, 

 bursting outwards. Ovary 3-celled, 3- valved 344 



85. Amaryllidacece. Fl. regular, of 6 petal-like parts. 

 Stam. 6, bursting inwards. Ovary 3-celled, 3-valved . . 346 



** Perianth inferior, apocarpous, or carpeh separable 

 when ripe. 



86. Alismacem. Perianth of 3 sepal-like and 3 petal- 

 like parts. Stam. 6. Fr. of many cai'pels 348 



*** Perianth inferior, syncarpom. 



87. Asparagacete. Perianth petal-like. Stam. 6 or 4 

 or 8 ; anth. bursting inwards. Fr. a berry. — Rhizome 

 creeping 3-50 



