106 POPULAR FLORA. 
seeds ; but embryos are represented in the figures, to show the student what is 
meant. — For the other class, see p. 203. 
KEY TO THE FAMILIES OR ORDERS OF CLASS I. 
Susciass I.— ANGIOSPERMS. 
With a regular pistil, and a seed-vessel in which the seeds are formed. See Paragr. 219, 311. 
I. Polypetalous Division. Calyx and corolla both present ; the petals entirely separate. 
A. STAMENS MORE THAN 10. 
1. St on the receptacle, cted either with the calysx, corolla, or ovary. 
Pistils more than one, entirely separate from each other. 
Herbs, with perfect flowers. Page 
Leaves not shield-shaped, generally cut, toothed, or compound, Crowroot Famity, 112 
Leaves shield-shaped, fixed by their middle, WATER-SHIELD, 121 
Woody vines, with dicecious flowers, shield-shaped leaves fixed near the edge, MoonsEED F. 118 
Small trees with perfect flowers, 6 petals, and entire leaves, CusTARD-APPLE F. 118 
Pistils many, grown together one above or over another on a long receptacle,’ Maenorra F. 117 
Pistils several, sunk in the flat top of a broad receptacle, NELUMEO, 121 
Pistils 8 to 6, the ovaries partly grown together in a circle, making 
A bladdery pod of several cells, Fennel-flower in Crowroot F. 112 
A several-horned one-celled pod, ' MIGNONETTE F. 125 
Pistil only one, at least having only one ovary; and that 
_ Simple and one-celled, only one placenta or seed-bearing part. 
Petals 6 to 9, large. Leaves 1 or 2, many-lobed, May-Apple in BARBERRY F. 119 
Petals 4 and irregular, or else very ath Crowroor F. 112 
Compound, with many seeds on a placenta from the bottom of the cell, Pursane F. 180 
Compound; if one-celled, then with two or more seed-bearing lines on the walls. 
Calyx falling when the flower opens; sepals fewer than the petals, Porry F. 122 
: Calyx falling after blossoming. Style 1: ovary several-celled. 
The 6 sepals edge to edge in the bud. Fruit dry, 1-seeded, Linven F, 133 
The sepals overlapping in the bud. Fruit many-celled, Orance F. 184 
Calyx remaining beneath the fruit. . 
Leaves with transparent or dark colored dots, all opposite, Sr. Jonn’s-wort F. 128 
Leaves not dotted. Ovary and pod one-celled, Cisrus F. 127 
Leaves not dotted. Ovary several-celled. Aquatic or bog plants. 
Leaves pitcher-shaped. Style umbrella-like, SIDESADDLE-FLoweEr F. 121 
Leaves rounded and heart-shaped. Style none, Warer-Lity F. 120 
2 Stamens connected with the bottom of the petals, and these borne on the receptacle. 
Filaments united in a pretty long tube or column: anthers kidney-shaped, one-celled, Matuow F. 181 
Filaments united only with the base of the petals: anthers oblong,.two-celled,. CaMELLIA F. 182 
