ANALYSIS. XVli 



A. TRIPETAL.E. 



Calyx and Corolla distinct. Petals 3. 



Order 96- Alismace*:. Flowers nioncpcioup, or perfect. Sepals 3. Petals 

 3. Stamens 6, or numerous. Ovaries superior, niimerous. Styles several 

 Aquauc plants, with parallel veined leaves, and while llowers. 



Genera. Sagittaria p. '235. Alisnia p. 235. 



Order 97. Hydrcx-haride-*:. P^lowers nioncrciou?, or dicecious. Sepals 3 

 Stamens 2 episynous. Ovary solitary, l-cclled, with numerous ovules. Float- 

 ing plaiit*. Flowers spathacrous, white or tinged with purple. 



(lenera. Hydrocharis p. 236. Valisneria p. 236. 



Order 9^. Commeline*:. Sepals 3, distinc'. Petals 3, sometimes united* 

 Stamens 6, hypoiiynous. sometimes 3 of them abortive. Style 1. Capsule 3- 

 celled many seeded. Herbaceous plants. Flowers blue, purple or rose color. 



Genera. Commelina p. 236. Tradescantia p. 237. 



Order 99. Xyride*:. Sepals 3, glumaceous. Petals 3, unguiculate. Sta- 

 mens 6, three of them fertile and inserted into the base ot the petal. Style 3- 

 cieft. Capsule 1-ceIled, many seeded, with parietal placenta\ Herbaceous 

 plants with radical, ensiform leaves. Flowers in terminal heads, yellow. 



Genus. Xyris p. 237. 



Order llX). Bromei.iace.*:. Calyx tubular, persistent Petals 3. Stamens 6 

 Style 1. Capsule 3 celled, many seeded. Plants usually without stems,' either 

 banging from the branches of trees, or with a tall scape, and fleshy ra (ical 

 leaves. Flowers purple or greenish white. 



Genus. Tillandsia p. 238. 



B. HEX.VPETAL^. 



Sepals and petals confounded^ vsually 6, colored, 



(a) Perianth superior. 



Order 101. Hvpoxidee. Perianth prfaloid. superior, 6 parted. Stamens 6 

 Style 1. Stigmas 31obed. Capsule inferior, 3-celIod, many seeded. Herba- 

 ceous plants with grass-like leaves and yellow flowers. 



Genus. Hypo.xis p 239. 



Order 102. BrRMAN-NtACEE. Perianth G-pnrted, tubular, superior, with the 3 

 alternate sei'ments small. Stamens 3. Style 1. Stigma 3-lohed, petaloid 

 Capsule inferior, 3-celIed, many seeded. Herbai-eous plants, with minute, 

 subulate, tufted, radical leaves, and blue or white flowers. 



Genus. Burmannia p. 239. 



Order 103. H EM0D0RACE.f:. Perianth petaloid. superior, more or less wool- 

 ly. Stamens 3-6, arising from the perianth. Style 1, simple. Capsule 3-ccll- 

 ed, mary seeded. Herbaceous plants, with equitant leaves, and showy, yel- 

 1 ow flowers. 



Genera. Lacnanthcs p. 239. Conostylis p. 240. 



Order 104, Amaryllide.*:. Perianth superior, regular, the outer segments 

 OTerlappine the inner. Samens 6 arising from the perianth. Style 1. Stigma 

 3-lobed. Capsule 3-valve(l, 3-crlled, many seeded. Herbaceous plants with 

 ensiform leave^. Fli;wers white or tinned with red. 



Genera: Amaryllis p. 240. Pancratium p. 240. 



Order 105. Iride-C. Perianth with the divisions partly cohering or separate, 

 irregular, the outer ones largest. Stamens 3, arising from the base of the out- 

 er segments, free or monndelphous. Style 1. Stigmas 3; in the Iris petaloid 

 Capsule 3-va!ved, 3-eelIed, many seeded. Herbaceous plants with equitant 

 leaTCS. Mowers with spaihes, mostly blue. 



Genera. Iris p. 241. Sisyrinchium p. 241. 



Order 106 Orchide.*:. Perianth superior, ringent. Sepals 3, colored, the 

 odd one uppermost. Petals 3, with the odd o.ie lowermost, often lobed and 



