GLOSSARY. 



XLV11 



also the fibrous base, or under surface 

 of foliaceous Lichens. 

 Icosandrous ; having about 20 stamen 

 which are perigynous, i. e. growing 

 to, and apparently inserted on the rim 

 of, the calyx. 



Imbricated; the edges lying over th 

 next series, like shingles on a rool 

 or scales on a fish. 



Immarginate ; not margined; destitut 

 of border, or margin. 



Immersed; under water; also closely 

 nestling in the bosom of leaves, a 

 the capsule of some Mosses. 



Imperfect flower; when either stamen 

 or pistils are deficient. 



Incised; cut, or gashed; separated by 

 incisions. 



Inclinate, or inclined ; bent over towarc 

 the ground, or some other object. 



Included; wholly contained within a tube 

 or cavity ; not exserted. 



Incomplete flower ; when either calyx o: 

 corolla is wanting. 



Incubous leaves (in Hepaticae) ; thei: 

 bases covered severally by the apex o 

 the preceding. 



Incumbent; lying upon, against, or across 



Incumbent anther; attached at or nea: 

 its middle, and lying horizontally 

 across the summit of the filament. 



Incumbent cotyledons ; having the radicle 

 bent over and applied to the back o 

 one of the cotyledons (represented by 

 this signoj|). 



Indefinite; not distinctly limited, or de 

 fined ; numerous, and of no constam 

 or determinate number, 



Indehiscent ; not opening at maturity. 



Indigenous; growing naturally, or or- 

 iginally, in a country. 



Induplicate ; folded inward. 



Indurated ; become hard. 



Indusium ; the membrane which covers 

 the young sorus (or cluster of fruit) . 

 on the Ferns. 



Inferior calyx : having the ovary above, 

 and free within it. 



Inferior ovary ; situated apparently be- 

 low the calyx, or rather its lobes, i. e. 

 adnate to the tube of the calyx, and 

 consequently bearing the lobes at its 

 summit. 



Inflated; swelled like a blown bladder. 



Inflected, or inflexed ; bent suddenly in- 

 ward. 



Inflorescence ; 



and their footstalks on a plant; the 

 the mode of flowering, such as Umbel, 

 Raceme, Panicle, &c. 



Innate anther; erect, having its base 

 resting directly on the apex of the fila- 

 ment. 



Innovations ; new shoots from the apex, 

 or near the summit, as in the Mosses. 



Inserted ; fixed upon, or growing out of. 



Internodes ; that portion of a culm, oi 

 stem, between the nodes. 



Interpetiolar stipules; situated or 



the arrangement of flowers Lance-linear 



ing between the petioles of opposite 

 leaves. 



Interrupted] having intervals ; the con- 

 tinuity broken. 



Interruptedly pinnate; having smaller 

 pinnae, or leaflets, between each pair 

 of larger ones. 



Introrse anthers ; having the cells turned 

 inward, and the connective extending 

 up the outer side. 

 Inversely; in a contrary position; end 



for end, or upside down. 

 Involucel ; the verticil of leaflets at the 



base of an umbellet. 

 Involucellate ; haying inyolucels. 

 fnvolucrate ; having an involucre. 

 Involucre; an assemblage of modified 

 leaves accompanying certain forms of 

 inflorescence. usually verticillate at 

 the base of an Umbel, or in imbricated 

 series beneath or around heads of com- 

 pound flowers. 



Involute ; rolled inward from both mar- 

 gins. 

 Irregular ; the component parts differing 



in size and shape. 

 Isidia ; minute coral-like particles, or 



crystals, in certain Lichens. 

 Isidioid ; resembling a kind of coral. 

 Keel ; a central ridge on the back of a 

 leaf, sepal, &c., resembling the keel of 

 a boat ; also, the lower pair of (coher- 

 ing) petals in a papilionaceous flower. 

 Keeled ; having a keel. 

 Labiale flowers; where the border is some- 

 hat in the form of 2 lips. 

 Lacerate; divided into irregular seg- 

 ments, as if torn. 



Laciniate ; jagged ; the margin irregular- 

 ly and deeply cut into segments. 

 Lactescent ; milky ; containing a milky 



or whitish juice. 

 Lacunose; pitted, furrowed, or having 



little cavities. 

 Lamellae; the plates, or gills, of the 



Agarics. 

 Lamellate ; divided, or dilated, into thin 



plates. 



Lamina; a thin layer, or plate; the ex- 

 panded on flat portion of a leaf, or 

 petal, as distinguished from the petiole, 

 or claw. 



r M.nate ; woolly ; clothed with wool. 

 Lanceolate ; tapering from near the base 

 to the apex, like the head of an an- 

 cient Lance, 



:r, lance-ovate, &c., linear, 

 ovate, &c., with something of the lance- 

 olate form. 



Lance-ovoid; egg-shaped, with a taper- 

 ing lengthened apex. 

 'Mnuginous ; clothed with a loose wool. 

 lateral; at the side. 



Laterally compressed ; flatted on the sides 

 (not on the back). 



loose, or limber ; not compact. 

 ets ; partial leaves ; the constituent 

 leaves of a compound leaf. 



' (foliaccus); having a texture, 



or Leaflets , 



original- Leaf-like 



