CLASS V. ORDER II. 
41 
P. Flowers incomplete. 
Hamilto'nia. Polygamous ; perianth turbinate, campanulate, 5-cleft; corolla0; 
Sectary with the disk 5-toothed; style 1; stigmas 2 or 3, germ immersed in the 
nectary ; drupe 1-seeded, enclosed in the adhering base of the calyx, (oil nut.) 
The'sium. Perianth 4 or 5-cleft ; stamens 4 or 5, villous externally; nut 1- 
seeded, covered by the persistent perianth, (false-toad flax.) 
Glaux. Calyx campanulate, 5-lobed, coloured; capsule globose, 5-valved, 5- 
seeded, surrounded by the calyx. 
ORDER II. DIGYNIA. 
A. Corolla \-petalled , inferior . 
Gentia'na. Calyx 4 or 5-cleft; corolla with a tubular base, bell-form, without 
pores, 4 or 5-cleft; stigmas 2, sub-sessile; capsule 1-celled, oblong; columellas 
2, longitudinal; stamens but 4, when the divisions of corolla are 4. (gentian.) 
Cuscu // ta. Calyx 4 or 5-cleft; corolla 4 or 5-cleft, sub-campanulate, wither¬ 
ing; capsule 2-celled, dividing transversely at the base ; seeds binate. (dodder.) 
Gelsemi'num. Calyx small, 5-leaved ; corolla funnel-form; border spreading, 
5-lobed, nearly equal; capsule 2-celled ; seeds flat. 
Hydro'lea. Calyx 5-petalled; corolla wheel-form, or bell-form; anthers cor¬ 
date ; style long, diverging ; stigma peltate; capsule 2-celled. S. 
Dichon^dra. Calyx 5-parted, with spatulale segments; corolla short, bell- 
form, 5-parted; stigma peltate, capitate; capsule compressed, 2-celled, 4-seed- 
ed. /S'. 
Evol"vulus. Calyx 5-parted ; corolla bell-form ; styles 2, 2-cleft; stigma 
simple. 
SwER /A riA. Corolla rotate, with 2 pores at the base of each segment. 
B. Corolla b-petalled. 
Pa'nax. Polygamous, umbeiled, involucrum, many-leaved; Calyx 5-toothed, 
in the perfect flower, superior ; berry cordate, 2 or 3-seeded; Calyx in the sta- 
minate flower entire, (ginseng.) 
Heuche'ra. Calyx inferior, 5-cleft; corolla on the calyx; petals small; cap¬ 
sule 2-beaked, 2-celled, many-seeded, (alum-root.) 
C. Corolla wanting. 
Salso'la. Perianth inferior, 5-cleft, persistent, enveloping the fruit with its 
base, and crowning it with its broad scarious limb, (salt wort.) 
Atri'plex. Polygamous; calyx 5-leaved, 5-parted, inferior; style 2-parted ; 
seed 1; in the pistilate flowers the calyx is 2-parted. (orach.) 
Plane'ra. Calyx membranous, bell-form, 4 to 5-cleft; corolla 0 ; stigmas 2; 
capsule globose, membranous, 1-celled, 1-seeded; sta,mens4to6; polygamous. S. 
Ko'chia. Calyx inferior, bell-form, 5-cleft, forming a permanent band around 
the fruit, somewhat resembling 5 petals ; corolla 0; style short; stigmas 2 or 3, 
long, simple. £. 
Cel'tis. Perfect or polygamous ; perianth inferior, 5-lobed; drupe globose, 
1-seede^. (nettle-tree.) 
Chenopo'dium. Calyx 5-parted, obtusely 5-angled, inferior; style deeply cleft; 
seed 1, lens-like, horizontal, invested by the calyx, (pig-weed, oak of Jerusalem.) 
Ulm // us. Calyx bell-form, withering; border 4 or 5-cleft; seed 1, enclosed in 
a flat membranaceous samara; stamens vary from 4 to 8. (elm.) 
Beta. Calyx 5-leaved; seed kidney-form within the fleshy substance of the 
base of the calyx, (beet.) Ex. 
[Plants umbelliferous ; flowers b-petalled , superior ; seeds 2.] 
Eryn^gium. Fruit ovate, with bristles; petals oblong, equal, inflected; flow¬ 
ers aggregate, forming a head. 
Sanic^ula. Seeds with hooked prickles, oblong, solid; umbels nearly simple, 
capitate; flowers polygamous; involucre few-flowered; calyx 3-parted, per¬ 
manent. 
Dau'cus. Seeds striate on their joining sides; outer sides convex, having 
hispid ribs; involucrum pinnatifid ; flowers sub-radiate, abortive in the disk, 
(carrot.) 
Urasper'mum. [Osmorhiza.]* Seeds sub-linear, solid, acute-angled, not stri- 
* Where two or more generic names are given, the pupil will understand that those within 
the brackets are synonymes of the other name. 
