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Follicle, a dry fruit formed of a single carpel dehiscing by a single suture, 
Fovea, depression in leaf containing sporangium in Isoetes, 
Free, not adnate or joined, 
Frond, the term applied to fern leaves, and to the plant body in Lemnaceae, 
Fuscous, grayish-brown, 
Galea, the upper lip of the corolla, particularly in certain Scrophulariaceae, 
which is shaped like a broad, sometimes elongate, hood, Galeate, having 
a galeae 
Geniculate, bent abruptly like a knee, 
Glabrate, smooth, nearly without hairs, or becoming so in age, Glabrous, 
entirely devoid of hairs. 
Gland, a cell or group of cells, often hairlike, which secrete various substances; 
often recognized by the secretions. Glandular, provided with glands, 
Glaucous, bearing a white waxy bloom as in certain plums, 
Globose, nearly or quite spherical. 
Glomerule, a rather dense cluster of flowers usually cymose, 
Glume, the chaffy or membranous bracts subtending the spikelets of grasses 
and sedges. 
Gregarious, growing in colonies. 
Gynoecium, the pistil or pistils as a whole, 
Habit, the aspect and manner of growth of a plant. 
. Habitat, the situation in which a plant normally grows. 
Hastate, shaped like a blade of a halberd: more or less bluntly arrow-shaped 
with the basal lobes flaring or Sereutinc. 
Head, a dense cluster of sessile or nearly sessile flowers; particularly 
the inflorescence of the Compositae, - 
Herb, plants usually small, not woody or only so at the very bases; annual 
or if perennial, the aerial parts commonly annyale Herbaceous, like 
an herb, i.e. not shrubby or treelike, 
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