285 
PRIMULACEJE. (PRIMROSE FAMILY.) 
5-valved at the summit, many-seeded. — Smooth herbs, with alter¬ 
nate entire leaves, and small white flowers in racemes. (Name 
from Samos , the island where the original species is said to have 
been first found.) 
1. S. floilbundus, Kunth. (American Water-Pimpernel.) 
Diffusely branched, leafy ; leaves oval, oblong, or obovate ; racemes 
numerous, loose, paniculate; the capillary pedicels spreading, with a 
minute bractlet above the middle ; lobes of the calyx ovate, a little 
Bhorter than the corolla; valves of the pod reflexed after opening. — 
Wet places, common. June-Sept. — Stems and racemes more dif¬ 
fuse than in the European S. Valerandi, the minute flowers and cap¬ 
sules only half the size. 
Tribe IV. HOTTONlfeiE. The Featherfoil Tribe. 
9. HOTTONIA, L. Featherfoil. 
Calyx 5-parted, the divisions linear. Corolla salver-shaped, 
with a short tube ; the limb 5-parted. Stamens 5, included. Pod 
many-seeded, 5-valved, the valves cohering at the base and sum¬ 
mit. Seeds attached by their base, anatropous. — Aquatic peren¬ 
nials, with the immersed leaves pectinate, and the erect hollow 
flower-stems almost leafless. Flowers white or whitish, whorled 
at the joints, forming a sort of interrupted racemes. (Name in 
honor of Prof. Hotton , of Leyden, in the 17th century.) 
1. H. tnflata, Ell. (Inflated Featherfoil.) Leaves dis¬ 
sected into thread-like divisions, scattered on the floating and rooting 
stems, or whorled and crowded at the base of the cluster of pedun¬ 
cles, which are strongly inflated between the joints; pedicels mostly 
shorter than the calyx, and much shorter than the linear bracts ; co¬ 
rolla not thickened at the throat, shorter than the calyx; anthers 
shorter than the filaments; style very short.— Pools and ditches. 
June. — The singularly inflated peduncles are often as thick as one’s 
finger. 
Order 65. EENTIBULACEJE. (Bladderwort Fam.) 
Small herbs (growing in water or wet places), with a 2- 
lipped calyx, and a 2-lipped personate corolla, 2 stamens 
with one-celled anthers, and a one-celled ovary with a free 
central placenta, bearing anatropous seeds. — Corolla deep¬ 
ly 2-lipped, spurred at the base in front; the palate usually 
