INTRODUCTION xlix 



Series 2. HypbgyrnB. Perianth inferior or absent, (pp. 483 

 —521.) 



Order 82. Lilidcece. (The Lily Family). — Mostly herbs with 

 conspicuous, polysymmetric flowers ; sepals, petals, and carpels 

 3 each ; stamens 6 ; ovary 3-chambered ; seeds 3 or more. 



(p. 483.) 



Order Zt^. JuiicdcecB (The Rush Family). — Herbs with cylindric 

 or narrow leaves and small brown flowers ; perianth membranous ; 

 sepals, petals, and carpels 3 each ; stamens 6 ; ovary i — 3- 

 chambered ; fruit capsular; seeds 3 or more. (p. 497.) 



Order 84. Typhdcece (The Reed-mace Family). — Erect aquatic 

 plants with long linear leaves and small monoecious flowers in 

 conspicuous spikes or heads ; perianth absent ; stamens many ; 

 fruit i-chambered, i seeded, (p. 503.) 



Order 85. Aroidece (The Cuckoo-pint Family). — Herbaceous 

 perennials with radical leaves, sometimes net-veined and small 

 flowers on a fleshy spadix enclosed in a leafy spathe ; perianth of 

 6 leaves or absent ; stamens i — 6 ; ovary i — 3-chambered ; fruit 

 berry-like ; seeds few. (p. 506.) 



Order 86. LeinndcecB (The Duckweed Family). — Minute float- 

 ing plants with green thalloid fronds, rarely flow^ering ; flowers 

 very minute, in a spathe ; stamen i ; ovary i-chambered ; ovules 

 1—7- (p. 508.) 



Order 87. Alisjndcece (The ^^ ater-Plantain Family). — ^^ater- 

 plants with radical, regularly net-veined leaves and conspicuous 

 perfect flowers ; sepals and petals 3 each ; stamens 6, 9, or more ; 

 carpels numerous and distinct, or nearly so, i — 2-ovuled. (p. 509.) 



Order Z^. Naiaddcece (The Pond-weed Family). — Aquatic 

 plants, mostly with floating or submerged leaves and inconspicuous 

 flowers ; sepals 4 — 6 or absent; stamens and carpels i — 6 each; 

 ovules I — 3 in each carpel, (p. 512.) 



Order 89. Eriocdukce (The Pipe-wort). — An aquatic plant 

 with subulate leaves and minute monoecious flowers ; sepals, petals, 

 and carpels 2 each ; stamens 4 ; ovary 2-chambered ; chambers 

 i-ovuled. (p. 521.) 



Sub-Class 2. Ghmuferce, — Having no true perianth, but the 

 flowers in the axils of chaft^-like scales (glumes) forming spikelets. 

 (pp. 521—591.) 



Order qo. CyperdcecE (The Sedge Family). — Herbs with stems 

 usually solid and triangular in section ; leaves tristichous, linear, 

 with tubular sheaths ; stamens i — 3 ; anthers basifixed ; carpels 

 and stigmas 2 — 3; ovary i-chambered, i-ovuled. (p. 522.) 



