CowRADo Weed Seeds 
83 
DeliiMce, to open or split. 
Distichous, in two vertical ranks, as the leaves of grasses. 
Dorsal, on the back; surface of member turned away from the main axis. 
Downy, covered with down, pubescence, or soft hairs. 
Driiplct, a small, fleshy fruit, with the inner portion hard and bony. 
Enrolled, enveloped; inwrapped. 
lilvauescent, disappearing early. 
Faceted, with small faces; as the facets of a diamond. 
Falcate, scythe-shaped. 
Fleshy, pulpy; succulent; plump. 
Foliaceous, leaf-like in texture or appearance. 
Follicle, a dry fruit consisting of a single carpel, dehiscing by a ventral suture. 
Furrowed, grooved; wrinkled. 
Fusiform, spindle-shaped; swollen in the middle and narrowing toward eacli 
end. 
Glandular, with glands, or gland-like. 
Globose, spherical or nearly so; globe-shaped. 
Glume, the scaly bracts of the spikelets of grasses and sedges. 
Granular, appearing as though covered by minute grains. 
Hiliim, the scar or area of attachment of the seed or ovule. 
Hyaline, thin and translucent; nearly transparent. 
Indurated, hardened. 
Inflorescence, the flowering part of plants; the mode of arrangement. 
Infolded, folded over; inwrapped; inclosed. 
Involucre, a whorl of bracts subtending a flower-cluster or fruit, as in 
Compositae, 
Irregular, not uniform. 
Keeled, with a projecting ridge on a surface, like the keel of a boat. 
Lateral, belonging to or borne on the side. 
Lemma, the lower of the two bracts inclosing the flower in the grasses; 
sometimes called the flowering glume. 
Lenticular, shaped like a double-convex lens. 
Lohed, with rounded and projecting parts. 
Mealy, appearing as though sprinkled with meal. 
Membranous, thin and rather soft, and more or less translucent. 
3Iicropyle, orifice of the ovule and corresponding point on the seed; the open- 
ing between the ovule or seed-coats. 
Millimeter, the 1000th part of a meter — .03937 inches. 
Napiform, turnip-shaped. 
jVerved, with veins or slender ribs. 
Notched, a v-shaped indentation or hollow. 
IXutlet, diminutive of nut; a small nut. 
<»btuse, blunt, or rounded. 
Oval, broadly elliptical. 
Ovary, the part of the pistil that contains the ovules. 
Ovate, in outline like a longitudinal section of a hen’s egg. 
Ovoid, shaped like a hen’s egg. 
Ovule, the body which becomes the seed after fertilization. 
Fnlet (Palea), the upper bract which, with the lemma, incloses the .sta.rnrns 
and pistils of grass flowers. 
Papillose, bearing minute, nipple-shaped projections. 
Pappus, the modified calyx-limb in Compositae forming a crown of various 
character at the summit of the achene. 
Pedicel, the stalk of a single flower in a flower cluster. 
Pericarp, the wall of the fruit, or seed vessel; the ovary wall, consisting of 
three layers: exocarp, mesocarp, and endocarp. 
Perigynium, the more or less infolded sac-like organ surrounding the pistil in 
Carex. 
Pitted, marked with small depressions or pits. 
Plumose, having fine hairs on each side, like the plume of a feather. 
Protuberance, a swelling; a prominence. 
