GLOSSARY OF BOTANICAL TERMS 



Ifri 



Disk. disc. A more or U^ss fleshy or elevated devolopmeut 



of the receptacle about the pistil: receptacle in the 



head of Compositje. ^ r i „„j= „f 



Disk-flowers. The tubular flowers in the center of heads of 



Composite, as distinguished from the ray-flowers. 

 Dissected. Divided into man>- slender seKUients. 

 Dissepinunt. A partition, particularly m an oyary or fru t 

 Distinct. Separate; not united with parts in the same 



series. 

 Divided. Separated to the base. 



Division. Propagation by means of separatins the root 



^vstem or rhizome system into parts; cutting up the 



plant into several root-bearing parts or pieces, as when 



one rhubarb plant is made into two or more. 



Dorsal. Back; relating to the back or outer surface of a 



part or organ. 

 Dorsiferous. Bearing anything on the back. 

 Dorsifixed. Attached by the back. , . , - 



DorsLntral Literally, back-front; placed with reference 



to the back or front or to both. 

 Double. Said of flowers that have more than the usual 

 number of floral envelopes, particularly of petaU, lull. 

 Downy. Covered with very short and weak soft hairs 

 Drupe. A fleshy one-seeded indehiseent fruit, with seed 



inclosed in a stony endocarp; stone-fruit. 

 Drupelet. One drupe in a fruit made up of aggregate 



drupes, as in the raspberry. 

 Dumose. Low and branching, as a bush. 



E- or Ex-. In Latin-formed words, usually denoting as 

 a prefix, that parts are missing, as e.xstipulate, withoxd 

 stipules, estriate, without stripes. 



Ecalcarate. AVithout calcar or spur. ., , . , , 



EZhgy. Study of habits and modes of life of ammals and 

 plants. 



Ecostate. Without ribs. 



Edentate. Without teeth. 



Effuse. Loosely spreading; verj,- diffuse. 



Eglandulose. Without glands. 



Elliptic. A flat part or body that is oval and narrowed to 

 rounded ends. 



Elongate. Lengthened; stretched out. 



Embryo. The plantlet in the seed. 



Endocarp. The inner layer or part of a pericarp. 



Endogen Term applied to stems having ^«f"ered bundles, 

 as of Indian corn, not appropriate, and now little used. 



£ „<foTp^m!^'starch or other food outside or around the 



.•„:Sr''— '"sword-shaped; long, flat, 2-edged, 

 nearly or quite straight, with a sharp point. 



Entire. Margin not in any way indented; whole. 



En^ronment Surroundings; conditions in which organ- 

 isms live and grow. - 



EplZeral. Perstting for one day only, as flowers of 

 spiderwort. 



Em A Greek prefix signifying on or upon. 



Epicirp. The outer layer or surface of the pericarp. 



eSc The upper part of the jointed Up of an orchid. 



EZ>^Ayl That part of the caulicle lying above the coty- 



Epid^is. Superficial layer of cells and underneath the 



Ep^^f^Cotyledons rising into the air in germination. 

 E^Zus. Close upon the ground rather than underneath 

 1^^. Borne on the ovary; used of floral parts when 



ovary is inferior and flower not perigynous. 

 Epipetalous. On a petal. 

 EpiphylUjus. On a leaf. 

 E^phyU. Air-plant; a plant growing on another or oa 



some other elevated support. , ,. . , ^ ,i,„t 



ET^itnni. Sitting astride; used for conduplicate leaves that 



stand inside each other in two ranks, as in Iria. 

 EroHrate. Without a beak. 

 E>»enlial organs. Stamens and pistils. 

 Eterarem. Remaining green throughout the year. 



Exalhumimms. Seeds without albumen or endosperm. 

 ExcentHc. Out of or away from the center. 

 Excurrcnt. The trunk or leader continumg through the top 

 Ixfoliotina. Coming off in thin layers, as the bark of birch 



and other plant.s. 



Erocarp. The outside part of a pericarp. . 



E.rogcn. erogenous. Growing and increasing ■" diameter 



by layers on the exterior of the woody cylinder, m 



distinction from endogens. . , ^ „ 



Exserled. Sticking out; projecting beyond, as stamens 



from a perianth. 

 Exsiccated. Dry or dried. 

 Exsiiptilate. Without stipules. 

 Extrorse. Looking or facing outward. 



Eye. The marked center of a flower; a bud on a tuber, as 

 on a potato; a single-bud cutting. 



Fades. The general appearance or "looks" of a plant; or 

 the characteristic appearance of a plant society _ 



Farinaceous. Containing starch, or starch-like materials. 



Fasciated. Much flattened; an abnormal or teratological 

 widening and flattening of the stem. 



Fascicle. A condensed or close cluster as of flowers. 



Feminine. Pistillate (in higher plants). h»,rin<r 



Fertile. Said of pollen-bearing stamens and seed-bearing 



FertiU^ion. Impregnation of the ovule; t^e act of union 

 of sperm and egg cells, in the higher plants takmg 

 place within the ovule: fecundation. 

 Fetid. Having a disagreeable odor. 

 FibriUose. With fine fibers or threads. 

 Fibrous. Fiber-like; containing fibers or thread-like parts. 

 Fihro-vascular. Made up of both fibers and ducts; combina- 

 tion of fibrous and vascular structure. 

 Filament. Stalk of the anther. 

 Filiform. Thread-like; long and very slender. 

 Fimbriate. Fringed. 

 Fimbrillale. Minutely fringed. 

 Fistular. Cylindrical and hollow. ^ 

 Flaccid. Soft; lax and weak; not rigid. 

 Flaaelliform. Whip-form; long and slender hke a lash. 

 Flagging. Wilting; said particularly of newly made cuttmgs 



and recently transplanted plants. 

 Flexuous. Having a more or less zigzag or wavy form, said 



of stems of various kinds. 

 Floccose. With tufts or flocks of soft wool or woolb ha^- 

 Flora. The plant population of a given region; also a book 



describing this population. 

 Florets. Individual flowers of composites and grasses also 

 other very small flowers that make up a very dense 

 form of inflorescence. 

 Floriferous. Flower-bearing. . , , , , ^, ^„. „ 

 Foliaceous. Leaf-like; said particularly of sepals and caJyx 

 lobes and of bracts that in texture, size or color look 

 like small or large leaves. , , . ' , „„ t^; 



-foliate. In combinations, -leaved; having leaves, as tri- 

 foliate, (Aree-Zeaued. .,,.,, -,, ; „/7«i„ 

 -foliolale. Having leaflets; as trifoliolate, of three i^^Af- 

 Follicle. Dry, dehiscent pericarp openmg only on the front 



suture. 

 Follicular. With follicles; foUicle-like. 

 Foramen. An aperture or opening. 

 Forked. Branching or divided into nearly equal parts or 



members. 

 Fornicate. Arched. , i t „„ f,„m fhp 



Free. Not joined to other organs; as petals free from the 



stamens or calyx. , . ^. „f f„iioop 



Frond. Leaf of fern; sometimes used m the ^^^^^ °f ° ff j 

 Frosted. With a more or less shming or crystallized 



white covering. •»•„„. „Un the 



Fructification. The act or process of fruiting, also the 



fruiting organ or organs. . , ^, j „»- 



Frui( The ripened pericarp or pericarps with the adnate 



parts; the seed-bearing organ. 

 FruHcosc. Shrubby or shrub-like in the sense of being 



woody. 



