ANALYSIS OF THIS NATURAL ORDBRS. 



197 



p Arnents globular, racemed. Nutlets 2-celled, woolly. Oed. 63 



p Aments globular, solitary. Nutlets 1-celled, 1 seeded. Platanacej:. 117 



p Aments cylindrical or oblong, (s). 



s Ovary 1-celled, 1-seeded. Fruit often fleshy. Myricace^e. 121 



s Ovary 2.ceiled, 2-ovuled, 1-seeded. Fruit often winged. Betulace.e. }29 

 s Ovary muny-ovuled, many-seeded. Seeds comous. Salicace^e. 122 



D Cohort 4. CONOIDE^E. 



t Leaves simple. Fertile flowers in cones. Stems branching, woody, 



joiutless. Conifers. 127 



Tf Leaves simple. Fertile flowers solitary. Stems branching, woody, 



joinlless. Taxace^e. 128 



*? Leaves pinnate. Fertile flowers solitary. Stems simple, palm-like. CycadacejE. 128 



E Cohort 5. SPADICIFLOR^E. 

 *i Trees or shrubs with palmi-cleft leaves all from one terminal bud, and 



a branching " spadix" from a spathe. 

 \ Herbs with simple, rarely ternate leaves. Spadix simple. (2) 

 2 Plants frond-like, minute, floating loose on the water. 

 2 Plants with stem and leaves, rooting and fixed. (3) 

 3 Spadix evident, in a spathe or on a scape. 

 3 Spadix obscure or spike-like. Stems leafy. (4) 

 4 Flowers with no perianth, densely spicate or capitate. 

 4 Flowers with a perianth or not. Plants submersed. 



Palmace^. 130 



Lemnace^e. 132 



Aracejs. 131 



Typhyce^e. 133 

 Naiadacce. 134 



F Cohort 0. FLORIDELE. 



*f Flowers (not on a spadix) in a small, dense, involuerate head, (k) 

 ^ Flowers (not on a spadix) solitary, racemed, spicate, etc. (3) 

 3 Perianth tube adherent to the ovary wholly or partly, (a) 

 3 Perianth free from the ovary. (4) 



4 Petals and sepals differently colored (except in Medeola, 147). (c) 

 4 Fetals and sepals similarly colored, (e) 

 a Flowers dioecious or polygamous. Low, aquatic herbs. IlYDRocnARiDACE.fi. 

 a Flowers dioecious, 6-androus. Shrubby climbers. Dioscoreace^e. 



a Flowers perfect, — gynandroua (stamen on the pistil). Orchidace^e. 



— monandrous with half an anther. MARANTACE.fi. 



— 3 — 6-androus. Stamens distinct, (b) 

 b Perianth woolly or mealy outside. Ovary half-free. 

 b Perianth glabrous outside. — Stamens 3, anthers introrse. 

 — Stamens 3, anthers cxtrorse. 

 ■ — Stamens G. 

 C Carpels many, distinct, acheniate in fruit. 

 c Carpels 3, united, with the stigmas distinct or not. (d) 

 d Leaves vesiculate in 1 or 2 whorls. Stigmas 3. 

 d Leaves alternate. — Stigmas 3. Scurfy epiphytes. 

 — Stigmas united into 1. 

 . e Leaves net-veined, dilated. — Flowers perfect, 4-parted. 

 — Flowers dioecious, C-parted. 

 e Leaves parallel-veined, (f ) 



f Styles, and often the stigmas also united into 1. (g) 



g Flowers colored, regular. Stamens G (4 in 1 species). Ln.iACE.fi. 

 jr Flowers colored, irregular or else triandrous. Poxtederiace.«. 



g Flowers greenish, glume-like or ecarious. JuncACE.fi. 



II^EMODORACE^E. 



BuRMAN.NIACE.E. 



iRIDACEfi. 



AMARYLLIDAGEyE. 



Alisjiace^e. 



Trilliace^e. 

 Eroheliace^e. 



CoiIMELYXACEJE. 



EoXBURGHIACE.fi. 



SUILACE^E. 



136 

 144 

 138 

 139 



143 

 137 

 143 

 149 

 135 



147 

 141 



152 

 146 

 145 



148 

 150 

 151 



