quillwort
         n 1: any of several spore-bearing aquatic or marsh plants having
               short rhizomes and leaves resembling quills; worldwide
               except Polynesia

English Dictionary: quillwort family	by the DICT Development Group
From WordNet (r) 3.0 (2006) [wn]:
quillwort family n quillworts; coextensive with the genus Isoetes [syn: Isoetaceae, family Isoetaceae, quillwort family]
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Oak \Oak\ ([omac]k), n. [OE. oke, ok, ak, AS. [be]c; akin to D.       eik, G. eiche, OHG. eih, Icel. eik, Sw. ek, Dan. eeg.]       1. (Bot.) Any tree or shrub of the genus {Quercus}. The oaks             have alternate leaves, often variously lobed, and             staminate flowers in catkins. The fruit is a smooth nut,             called an {acorn}, which is more or less inclosed in a             scaly involucre called the cup or cupule. There are now             recognized about three hundred species, of which nearly             fifty occur in the United States, the rest in Europe,             Asia, and the other parts of North America, a very few             barely reaching the northern parts of South America and             Africa. Many of the oaks form forest trees of grand             proportions and live many centuries. The wood is usually             hard and tough, and provided with conspicuous medullary             rays, forming the silver grain.          2. The strong wood or timber of the oak.          Note: Among the true oaks in America are:          {Barren oak}, or          {Black-jack}, {Q. nigra}.          {Basket oak}, {Q. Michauxii}.          {Black oak}, {Q. tinctoria}; -- called also {yellow} or             {quercitron oak}.          {Bur oak} (see under {Bur}.), {Q. macrocarpa}; -- called also             {over-cup} or {mossy-cup oak}.          {Chestnut oak}, {Q. Prinus} and {Q. densiflora}.          {Chinquapin oak} (see under {Chinquapin}), {Q. prinoides}.          {Coast live oak}, {Q. agrifolia}, of California; -- also             called {enceno}.          {Live oak} (see under {Live}), {Q. virens}, the best of all             for shipbuilding; also, {Q. Chrysolepis}, of California.                      {Pin oak}. Same as {Swamp oak}.          {Post oak}, {Q. obtusifolia}.          {Red oak}, {Q. rubra}.          {Scarlet oak}, {Q. coccinea}.          {Scrub oak}, {Q. ilicifolia}, {Q. undulata}, etc.          {Shingle oak}, {Q. imbricaria}.          {Spanish oak}, {Q. falcata}.          {Swamp Spanish oak}, or          {Pin oak}, {Q. palustris}.          {Swamp white oak}, {Q. bicolor}.          {Water oak}, {Q. aguatica}.          {Water white oak}, {Q. lyrata}.          {Willow oak}, {Q. Phellos}. Among the true oaks in Europe             are:          {Bitter oak}, [or]          {Turkey oak}, {Q. Cerris} (see {Cerris}).          {Cork oak}, {Q. Suber}.          {English white oak}, {Q. Robur}.          {Evergreen oak},          {Holly oak}, [or]          {Holm oak}, {Q. Ilex}.          {Kermes oak}, {Q. coccifera}.          {Nutgall oak}, {Q. infectoria}.          Note: Among plants called oak, but not of the genus                {Quercus}, are:          {African oak}, a valuable timber tree ({Oldfieldia             Africana}).          {Australian, [or] She}, {oak}, any tree of the genus             {Casuarina} (see {Casuarina}).          {Indian oak}, the teak tree (see {Teak}).          {Jerusalem oak}. See under {Jerusalem}.          {New Zealand oak}, a sapindaceous tree ({Alectryon             excelsum}).          {Poison oak}, the poison ivy. See under {Poison}.
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Swamp \Swamp\, n. [Cf. AS. swam a fungus, OD. swam a sponge, D.       zwam a fungus, G. schwamm a sponge, Icel. sv[94]ppr, Dan. &       Sw. swamp, Goth. swamms, Gr. somfo`s porous, spongy.]       Wet, spongy land; soft, low ground saturated with water, but       not usually covered with it; marshy ground away from the       seashore.                   Gray swamps and pools, waste places of the hern.                                                                               --Tennyson.                   A swamp differs from a bog and a marsh in producing                trees and shrubs, while the latter produce only                herbage, plants, and mosses.                  --Farming                                                                               Encyc. (E.                                                                               Edwards,                                                                               Words).          {Swamp blackbird}. (Zo[94]l.) See {Redwing}       (b) .          {Swamp cabbage} (Bot.), skunk cabbage.          {Swamp deer} (Zo[94]l.), an Asiatic deer ({Rucervus             Duvaucelli}) of India.          {Swamp hen}. (Zo[94]l.)       (a) An Australian azure-breasted bird ({Porphyrio bellus});             -- called also {goollema}.       (b) An Australian water crake, or rail ({Porzana Tabuensis});             -- called also {little swamp hen}.       (c) The European purple gallinule.          {Swamp honeysuckle} (Bot.), an American shrub ({Azalea, [or]             Rhododendron, viscosa}) growing in swampy places, with             fragrant flowers of a white color, or white tinged with             rose; -- called also {swamp pink}.          {Swamp hook}, a hook and chain used by lumbermen in handling             logs. Cf. {Cant hook}.          {Swamp itch}. (Med.) See {Prairie itch}, under {Prairie}.          {Swamp laurel} (Bot.), a shrub ({Kalmia glauca}) having small             leaves with the lower surface glaucous.          {Swamp maple} (Bot.), red maple. See {Maple}.          {Swamp oak} (Bot.), a name given to several kinds of oak             which grow in swampy places, as swamp Spanish oak             ({Quercus palustris}), swamp white oak ({Q. bicolor}),             swamp post oak ({Q. lyrata}).          {Swamp ore} (Min.), bog ore; limonite.          {Swamp partridge} (Zo[94]l.), any one of several Australian             game birds of the genera {Synoicus} and {Excalfatoria},             allied to the European partridges.          {Swamp robin} (Zo[94]l.), the chewink.          {Swamp sassafras} (Bot.), a small North American tree of the             genus {Magnolia} ({M. glauca}) with aromatic leaves and             fragrant creamy-white blossoms; -- called also {sweet             bay}.          {Swamp sparrow} (Zo[94]l.), a common North American sparrow             ({Melospiza Georgiana}, or {M. palustris}), closely             resembling the song sparrow. It lives in low, swampy             places.          {Swamp willow}. (Bot.) See {Pussy willow}, under {Pussy}.
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Quillwort \Quill"wort`\, n. (Bot.)       Any plant or species of the genus {Isoetes}, cryptogamous       plants with a cluster of elongated four-tubed rushlike       leaves, rising from a corm, and containing spores in their       enlarged and excavated bases. There are about seventeen       American species, usually growing in the mud under still,       shallow water. So called from the shape of the shape of the       leaves.