GLOSSAEY. 



817 



and generally occurring on the epidermis of 



plants. 

 Glandular Hairs, hairs tipped with a gland, 



as in Drosera and Chinese Primrose. 

 Glans, nut, applied to the Acorn and Hazel- 

 nut, which are enclosed in bracts. 

 Glaucous, covered with a pale-green bloom. 

 Globule, male organ of Chara. 

 Glochidiate, barbed, applied to hairs with two 



reflexed points at their summit. 

 Glomerulus, a rounded, cymose inflorescence, 



as in Urtica. 

 Glossology, explanation of technical terms. 

 Glumaceous, of the nature of glumes. 

 Glume, a bract covering the organs of repro- 

 duction in the spikelets of Grasses, which are 



hence called Glumiferous. 

 Glumelle and Glumellule, a name applied 



to the palea or fertile glume of a Grass. 

 GoNGYLi, same as Gonidia. 

 Gonidia, green germinating cells in the thallus 



of Lichens. 

 Gonos and Gone mean offspring; used in 



composition. 

 Gonus or Gonum, in composition, means either 



kneed or angled ; in the former case the o is 



shortj'in the latter long : Polygonum, many- 

 kneed ; Tetragdmim, four-angled. 

 Grain, caryopsis, the fruit of Cereal Grasses. 

 Grains of pollen, minute cells composing the 



pollen. 

 Granules,^ minute bodies varying greatly in 



size, having a distinct external shadowed 



ring or margin, the external edge of which is 



abrupt. 

 Granulated, composed of granules. 

 Grumous, collected into granular masses. 

 Gymnocarpous, Lichens having fructifications 



in the form of a scutellate, cup-shaped, or 



linear thallus. 

 Gymnogen, a plant with naked seeds, i.e. 



seeds not in a true ovary. 

 Gymnos, naked, in composition Gymno. 

 Gymnospermous, plants with naked seeds, i.e. 



seeds not in a true ovary, as Conifers. 

 Gymnospore, a naked spore ; Gytftnosporous, 



having naked spores. 

 Gymnostomi, naked-mouthed. Mosses without 



a peristome. 

 Gynandrophore, a column bearing stamens 



and pistil. 

 Gynandrous, stamen and pistil united in. a 



common column, as in Orchids. 

 Gyne, female, and Gyn, Gynous, andGYNO, 



in composition, refer to the pistil or the 



ovary. 

 Gynizus, the position of the stigma on the 



column of Orchids. 

 Gynobase, a central axis, to the base of which 



the carpels are attached. 

 Gyncecium, the female organs of the flower. 

 Gynophore, a stalk supporting the ovary. 

 Gynostegium, stamina! crown of Asclepias. 

 Gynostemium, column in Orchids bearing the 



organs of reproduction. 

 Gyrate, same as Czrcinaie. 

 Gyration, same as Rotation in cells. 



Habit of a plant, its general external appear- 

 ance. 



Halophytes, plants of salt marshes, contain-, 

 ing salts of soda in their composition. 



Hastate, halbert-shaped, applied to a leaf 

 with two portions at the base projecting more 

 or less completely at right angles to the blade. 



Haulm, dead stems of herbs, as of the potato. 



Haustorium, the sucker at the extremity of 

 the parasitic root of Dodder. 



Head. See Capitulum. 



Heart-wood, same as Duramen. 



Hekistotheems, plants requiring a very small 

 amount of heat, as arctic and antarctic plants. 



Helicoid cyme, in which the flowers are 

 arranged in a continuous helix or spiral, 

 round a false axis. 



Helicoidal, having a coiled appearance like 

 the shell of a snail, applied to inflorescence. 



Helmet, the upper pejaloid sepal of Aconitum. 



Hemi, half; same as Latin Semi. 



Hemicaep, one of the achenes forming the cre- 

 mocarp of Umbelliferse. 



Hepta, seven ; same as Latin Sepiern. 



Heptagynous, having seven styles. 



Heptandrous, having seven stamens. 



Herb, a plant with an annual stem, opposed to 

 a woody plant. 



Herbaceous, green succulent plants which die 

 down to the ground in winter ; annual shoots ; 

 green-coloured cellular parts. 



Hermaphrodite, stamens and pistil in the same 

 flower. 



Hesperidium, the fruit of the Orange, and 

 other Aurantiacese. 



Heteracmy, another name for Dichogamy. 



Heterocephalous, composite plants having 

 male and female capitula on the same plant. 



Heterocvsts, peculiar cells forming large 

 germs in Nostochineas, differing from spor- 

 angia and spores. 



Heterodromous, spirals running in opposite 

 directions. 



Hetercecium, applied to potato fungus, 

 meaning that part of its life is passed on some 

 other host than the potato. 



Heteeogamous, Compositse having herma- 

 phrodite and unisQxual flowers on the same 

 head. 



Heterogenesis, another nartie for so-called 

 spontaneous generation, in which living cells 

 are supposed to be produced by inorganic 

 matter. 



Heteromoephic, having different forms of • 

 flowers as regards stamens and pistils, and 

 these forms being necessary for fertilisation, 

 as in Primula. 



Heterophyllous, presenting two different 

 forms of leaves. 



Heterorhizal, rootlets proceeding from vari- 

 ous points of a spore during germination. 



Heteros, dissimilar or diverse ; in composition, 

 Hetero. 



Heterospoeous, Cryptogamic plants, having 

 both microspores and macrospores on the 

 same individual, as in Selaglnella. 



Heterotropal, ovule with the hilum in the 

 middle, and the foramen and chalaza at op- 

 posite ends. 



Hexa, six ; same as Latin Sex. 



Hexagynous, having six styles. 



Hexandrous, having six stamens. 



Hilum, the base of the seed to which the pla- 

 centa is attached, eithpr directly or by means 

 of a cord. The term is also applied to the 

 mark at one end of some grains of starch. 



3g 



