
ae ee 
as haan 
Glossary 433 
Di- —Two, or twice. 
Diadelphous (stamens)—-United by the 
filaments into two sets. 
Dichotomous—2-forked. 
Dicotyledonous—Having 2 cotyledons. 
Dicotyledons—Plants which have 2 coty- 
ledons. 
Didymous—T win. 
Didynamous—With 2 stamens longer than 
the others. 
Diffuse—Spreading widely and irregular- 
ly. 
Digitate—Leaflets all borne on the apex 
of the petiole. 
Dimorphous—Of 2 forms. 
Dioicous—Dioecious—With stamens and 
pistils in separate flowers on different 
plants. 
Disk—The central region of a head of 
flowers, like the sunflower, as opposed 
to the ray or margin; a fleshy expansion 
of the receptacle of a flower. 
Dissected—Cut deeply into many lobes or 
divisions. 
Disticheus— ['wo-ranked. 
Divaricate—Very widely divergent. 
Divided (leaves, etc. )——Cut into divisions 
extending about to the base or the mid- 
rib. 
Dorsal—Pertaining to the back or outer 
surface of an organ. 
Drupaceous—Drupe-like. 
Drupe—A< stone-fruit. 
Drupelet—Diminutive of drupe. 
Echinate—Armed with prickles. 
Elliptic—Elliptical—Oval or oblong with 
the ends regularly rounded. 
Emarginate—Shallowly notched at the 
summit. 
Emersed—Raised out of water. 
Ensiform—Sword-shaped. 
Entire (foliar organs)——The margin not 
at all toothed, notched or divided. 
Ephemeral—Lasting for a day or less. 
Epigynous—Upon the ovary. 
Equitant—Leaves which infold each other 
in two ranks, as in Iris. 
Erose—As if gnawed. 
Evergreen—Holding the leaves over win- 
ter or longer until new ones appear. 
Excurrent—Projecting beyond the apex; 
or a tree trunk continued to the very 
top. 
Exserted—Protruding out of, as the sta- 
mens out of the corolla. 
Extrorse—Turned outward. 
Fascicle—A close cluster. 
Fascicled—Growing in a bundle or tuft. 
Fastigiate (branches) —Close, parallel. 
Favose—Honeycombed. 
Fertile—Fruit-bearing; or pollen-bearing 
anthers. 
Filament—The stalk of a stamen; any 
slender thread-shaped appendage. 
Filiform—Theard-shaped. 
Fimbriate—Fringed. 
Flabelliform—Fan-shaped. 
Floccose—Composed of or bearing tufts 
of woolly or long and soft hairs. 
Foliaceous—Leaf-like. 
Follicle—A simple pod, opening down the 
inner suture. 
Foveate—Deeply pitted. 
Foveolate—Diminutive of foveate. 
Free—Not united with any other parts. 
Fringed—The margin beset with slender 
appendages, bristles, etc. 
Fruit—The seed-bearing structure of a 
plant. 
Fugacious—Soon falling off or perishing. 
Fulvous—Tawny; dull yellow with gray. 
Fusiform—Spindle-shaped. 
Galea—A hooded or helmet-shaped por- 
tion of some perianths. 
Gamopetalous—Monopetalous—Sympeta- 
lous; petals united into | piece. 
Geminate—TIn pairs. 
Geniculate—Bent abruptly, like a knee. 
Gibbous—More swollen at one place or 
on one side than the other. 
Glabrate—Becoming glabrous with age, 
or almost glabrous. 
Glabrous—Smooth, having no hairs, bris- 
tles, or other pubescence. 
Gland—A secreting surface or structure; 
any protuberance or appendage having 
the appearance of such an organ. 
Glaucous—Covered with a fine white pow- 
der that rubs off, like that on a fresh 
plum. 
Globose—Spherical or nearly so. 
Glochidiate (hairs or bristles) Barbed; 
tipped with barbs, or with a double 
hooked point. 

