ANALYSIS OF THE NATURAL ORDERS. 197 



p Aments globular, racemed. Nutlets 2-celled, woolly. OBD. 62 



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

 p Aments cylindrical or oblong, (s). 



s Ovary*l-celled, 1-seeded. Fruit often fleshy. MYRICACILB. 121 



s Ovary 2.ceiled, 2-ovuled, 1-seeded. Fruit often winged. BETULACEJE. 120 

 s Ovary many-ovuled, many-seeded. Seeds comous. SALICACE-E. 122 



D COHORT 4. CONOIDEJE. 



^[ Leaves simple. Fertile flowers in cones. Stems branching, woody, 



jointless. CONIFERS. 127 



*!f Leaves simple. Fertile flowers solitary. Stems branching, woody, 



jointless. TAXACE^E. 128 



^ Leaves pinnate. Fertile flower solitary . Stems simple, palm-like. CYCADACEJS. 128 



E COHORT 5. SFADIciFLOILE. 



^[ Trees or shrubs with palmi-cleft leaves all from one terminal bud, and 



a branching " spadix" from a spathe. PALMACEJE.- 130 



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

 2 Plants frond-like, minute, floating loose on the water. LEJINACE^:. 132 



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



3 Spadix evident, in a spathe or on a scape. ARACE^:. 131 



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



4 Flowers with no perianth, densely spicate or capitate. TYPHYCE^B. 133 



4 Flowers with a perianth or not. Plants submersed. NAIADACE^E. 134 



F COHORT 6. FLORLDEJE. 



*!i Flowers (not on a spadix) in a small, dense, involucrate head, (k) 

 *f 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 Petals and sepals similarly colored, (e) 



a Flowers dioecious or polygamous. Low, aquatic herbs. HYDROCHARIDACE^E. 136 



a Flowers dioecious, 6-audrons. Shrubby climbers. DIOSCOREACE^E. 144 



a Flowers perfect, gynandrous (stamen on the pistil). ORCHIDACE^E. 138 



monandrous with half an anther. MARANTACEJE. 100 



3 G-androus. JBtameus distinct, (b) 



b Perianth woolly or mealy outside. Ovary half-free. HJEHODORACE.E. 142 



b Perianth glafcrous outside. Stamens 3, anthers introrse. BCIIJIANNIACE^E. 137 



Stamens 3, anthers extrorse. IRIDACE^E. 143 



Stamens 6. A^ARYLLIDACEJ:. 140 



c Carpels many, distinct, acheniate in fruit. ALISMACE^:. 135 



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



d Leaves verticillate in 1 or 2 whorls. Stigmas 3. TRILLIACEJ-:. 147 



d Leaves alternate. Stigmas 3. Scurfy epiphytes. BP-OJIELIACEJ;. 141 



Stigmas united into 1. COHMKLYXACE.C. 152 



e Leaves net-veined, dilated. Flowers perfect, 4-partecl. EOXBURGHIACEJE. 148 

 Flowers dioecious, 6-parted. SHILACE.E. 145 



e Leaves parallel-veined, (f ) 



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



g Flowers colored, regular. Stamens 6 (4 in 1 species). LILIACE^E. 148 

 g Flowers colored, irregular or else triandrous. PONTEDERIACEJE. 150 



g Flowers greenish, glume-like or scarious. JCXCACEJE. 151 



