convex or rounded, 77.

Glabrescent slightly hairy but becoming glabrous, 89.

Glabrous quite smooth without hairs, 89.

Glaucous covered with a bloom, 160.

Glume the chaffy two-ranked members found in the
inflorescence of grasses.
H

Hirsute covered with fairly long distinct hairs, 90.

Hyaline colourless or translucent, 51.

I

Imbricate overlapping, 49.

Internode portion of a stem between two nodes, 2.

Intravaginal growing out from inside the sheath.

Involucel a ring of bracts surrounding several spikelets, 120.

K

Keeled having a ridge along the length, 59.

L

Lemma the flowering glume of a grass, 15.

Ligule the thin, scarious projection found at the top of the
leaf sheath where it joins the blade in grasses, 3.

Lodicule a small scale outside the stamens in the flower of
grasses.

M

Membranous thin and semi-transparent, 51.

Monoecious stamens and pistils on separate flowers, but on the
same individual, 144.

Motor cells large thin-walled cells occurring in the epidermis of
the leaves of some grasses, 35.

Mucronate possessing a short and a straight point, 70.

N

Node the part of the stem which has a leaf, or the knot in
the grass stem, 2.

P

Palea the inner glume in the spikelet of grasses, 4.

Pectinate pinnatifid with narrow segments which are set close
like the teeth of a comb, 162.

Pericycle the outermost zone of cells of the stele immediately
within the endodermis, 32.

Phloem the portion of the vascular bundle towards the cortex,
19.

Pileole another name for germ-sheath, or the sheath covering
the plumule in the grain, 18.

Piliferous bearing hairs, 31.

Pistil the female organ of a flower, consisting of the ovary,
style and stigma, 16.

Plumose feathered, 51.

Prophyllum the first scale-like leaf of a branch found where it
joins the main stem, 10.

Protandry anthers ripening before the pistil in the same flower,
(proterandry). 16.

Protogyny pistil ripening before the anthers in the same flower,
(proterogyny). 16.

Puberulous sligh