ANALYSIS OF THE GENERA. 29 
Carpella numerous, on dry receptacles. 
Calyx eight to nine partite ............... DRYAS, V. 2. pe 732. 
Calyx four or five-cleft, bracteated. 
Styles long, persistent, jointed......... GUM, v. 2. p. 733. 
Styles deciduous, not jointed. 
receptacle large, spongy ............ COMARUM, V. 2. p. 7387. 
receptacle small, hard. 
Stamens and carpella numerous. PorENnTILLA, v. 2.p. 738 
Stamens and carpella generally 
LUNYG? cee pogedendocnacehcedao6 SIBBALDIA, v, 1. p. 456. 
Carpella two, enclosed in the indurated 
TUS Gi WINS CaleX GoqanbeBeedoddboce AGRIMONIA, V. 2. p. 676. 
TRIBE 5. Sprra@acea.—De Cann. 
Seeds two to six, exalbuminous ............ SPrr#a, v 2. p. 697. 
TRIBE 6.—SANGUISORBEX.—JUSS. 
Perianth eight parted ...... Sap Sodedoccobcaho: ALCHEMILIA, Vv. 1. p. 201, 
IBCELEMUM MOMENPATLEE..s..cloc.c-hseclneeeeeenince SANGUISORBA, V. 1. p. 203. 
Perianth four-cleft, tubular .............20006 PoTERIUM, V. 3. p. 
ORDER XXVIII LYTHRARIEA.—Juss. 
Perianth double. Calyx tubular, or campanulate, lobed, the lobes 
valvate, or distant in estivation, their sinuses sometimes lengthened 
into other lobes. Petals inserted on the upper part of the tube of the 
calyx between the lobes, fugacious. Stamens inserted into the tube 
of the calyx before the petals, to which they are sometimes equal in 
number, or two, three, and sometimes four times as numerous. 
Anthers two celled, versatile. Ovary superior, two or four celled. 
Style filiform. Stigma mostly capitate. Fruit a membranous cap- 
sule, covered by the calyx, one celled, dehiscing either longitudinally 
or in an irregular manner. Seeds numerous, small, without albumen, 
attached to a central placenta, embryo straight, radicle turned towards 
the hilum, cotyledons flat, foliaceous.— Herbaceous plants with opposite 
rarely alternate simple exstipulate leaves. 
GENERA. 
Calyx campanulate, six to twelve toothed ; 
petals shorter than the calyx ......... PEPLIs, v. 2. p. 464, 
Calyx cylindrical, striated, eight to twelve 
toothed ; petals longer than the calyx Lyrurvm, v. 2. p. 675. 
—_———s 
ORDER XXIX. CERATOPHYLLEA).—Gray. 
Flowers moneecious. Perianth single, tubular, free, many partite, 
the lobes equal. Barren flowers with twelve to twenty stamens, with 
