GLOSSARY. 



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Fuscous. Grayish-brown. 

 Fusiform. Spindle-shaped. 



Galea. A helmet-shaped or beak-like 

 upper lip of a corolla. 



Galeate. Helmet-shaped; having a 

 galea. 



Geniculate. Bent abruptly, like a 

 knee. 



Gibbous. With a protuberance or 

 swelling on one side. 



Glabrate. Nearly glabrous or becom- 

 ing glabrous. 



Gland. A secreting organ or a pro- 

 tuberance resembling one. 



Glaucescent. Somewhat glaucous. 



Glaucous. Covered with a whitish 

 bloom. 



Glochidiate. Barbed at the tip. 



Glomerate. In small compact clus- 

 ters. 



Glumaceous. Glume-like. 



Glume. A chaff-like bract, especially 

 the two empty bracts at the base 

 of a grass spikelet. 



Glutinous. Sticky, glue-like. 



Grain. A one-celled, one-seeded in- 

 dehiscent seed-like fruit in which 

 the wall of the fruit adheres to the 

 seed, a caryopsis. 



Granulate. Appearing as if covered 

 with minute granules. 



Gynobase. An enlargement or pro- 

 longation of the receptacle bearing 

 the ovary or in the fruit the nutlets 

 (Boraginaceae). 



Hastate. Halberd-shaped. 



Haustoria. Root-like organs which 

 parasitic plants send into the cells 

 of their hosts to absorb food. 



Hermaphrodite. Having both sexes; 

 in flowering plants, with both 

 stamens and pistils. 



Hilum. The attachment scar on the 

 seed. 



Hirsute. Pubescent with rather coarse 

 stiff hairs. 



Hispid. Covered with rigid hairs or 

 bristles. 



Hyaline. Transparent or translu- 

 cent. 



Hypocotyl. The stem-like part of the 

 embryo (caulicle). 



Hypogynous. Attached to the recep- 

 tacle below and entirely free from 

 the ovary. 



Imbricated. Overlapping and break- 

 ing joints like shingles. 



Incised. Cut sharply and irregularly 

 more or less deeply. 



Indehiscent. Not opening when ripe. 



Indurated. Hardened. 



Indusium. The protective membra- 

 nous covering formed over the fruit- 

 dot in many ferns. 



Involucel. A secondary involucre en- 

 veloping an umbellet (Umbelli- 

 ferae). 



Involucrate. Having an involucre. 



Involucre. A circle or cluster of 

 bracts surrounding a flower or 

 group of flowers. 



Involute. Rolled inward. 



Keel. A projecting midrib on the 

 dorsal side of a leaf or scale; the 

 two anterior united petals in a 

 papilionaceous flower (Legumino- 

 sae). 



Lacerate. Irregularly cleft as if torn. 



Laciniate. Cut into narrow pointed 

 lobes. 



Lemma. A bract in a grass spikelet 

 which bears a flower in its axil. 



Lenticular. Lentil-shaped, that is, 

 with the shape of a double-convex 

 lense. 



Ligulate. Strap-shaped ; or with strap- 

 shaped corollas. 



Ligule. A thin often scarious pro- 

 jection from the summit of the 

 leaf-sheath in grasses and similar 

 plants. 



Limb. The expanded part of a petal 

 or sepal. 



Lobed. Margin indented less than 

 half way to the midrib. 



Locule. One of the cavities or cells 

 in an ovary. 



Loculicidal. Dehiscing so that the 

 clefts open into the cavities of the 

 ovary. 



Lodicule. One of the tiny scales 

 sometimes found in a grass flower. 



Lunate. Crescent-shaped or half- 

 moon-shaped. 



Lyrate. Pinnatifid with a large and 

 rounded terminal lobe and the 

 lower lobes small. 



Megasporangium. The case in which 

 the megaspores are produced. 



