ANALYSIS OF THE NATDRAL OBDSSS. 



in 



p Amenta globular, raoemed. Nutlets 2-oelled, woolly. Okd. 62 



p Aments globular, solitary. Nutlets 1-eelled, 1 seeded. Platanaoe^. 1)7 

 p Ainents cylindrical or oblong, (s). 



8 Ovary 1-celled, l-seedod. Fruit oilan fleshy. Mtkioaoils. 12i 



8 Ovary 2.ceiled, 2-ovuled, l-seedod. Fruit often winged. Betulace^. I'M 

 a Ovary many-ovuled, many-aeeded. Seeds comous. SALioACEyE. is- 



D Cohort 4. CONOIDEiE. 



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



jOiutleSS. CONIFEEJC. 12T 



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



jointless. TaxaoejB. 128 



f Leaves pinnate. Fertile flowers solitary. Stems simple, palm-like. CrcADAOEiE. 128 



E Cohort 5. SPADICIFLOK^ 



T Trees or shrubs with palmi-oleft leaves all from one terminal bud, and 



a branching " spadix" from a spathe. 

 T Herbs with simple, rarely ternate leaves. Spadix simple. (3) 

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

 2 Plants with stem and leaves, rooting and flxed. (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 spioate or capitate. 

 4 Flowers with a perianth or not. Plants submersed. 



Palmaoe^. 130 



F Cohort 6. FLOEIDE^. 



% Flowers (not on a spadix) in a small, dense, involnorate head. (!c) 

 T Flowers (not on a spadix) solitary, raoemed, 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 diflferently colored (except in Medeola, 14:7). (c) 

 4 Petals and sepals similarly colored, (e) 

 Flowers dioecious or polygamous. Low, aquatic herbs. HYDKocHAEroAOEa. 



DlOSCOEEAGE^. 



Obchidaoejs. 



188 



144 

 138 



Flowers dioecious, 6-androu3. Shrubby climbers. 

 a Flowers perfect, — gynandrous (stamen on the pistil). 

 — monandrous with half an anther. 

 — 8 — 6-androu9. Stamens distinct, (b) 

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

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

 — Stamens 3, anthers extrorse. 

 — Stamens 6. 

 t; Carpels many, distinct, aoheniate in fruit. 

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

 d Leaves verticillate 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, 6-parted . 

 c 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). Ln,iAOE.E. 148 

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



g Flowers greenish, glume-like or scauous. Juncace^. 151 



MAEANTAOE.E. 1S9 

 HjE3I0D0RACE.E. 142 



B[jKaiANNiACE.s:. 1ST 



Ieidace*. 143 



AmaeyllidagEvB. 140 



Alxsmace^b. 135 



Teilliaoe^. 147 



bh01ieliace.e. 141 



commelynace^. 153 



koxbueouiaoe^. 146 



SiiiijvcEX. 14S 



