GRIFFITHELLA 
4i 3 
Gynerium, Arundo, fPhragmites, iTriodia, fMolinia, 
Eragrostis, fKoeleria, fCatabrosa, tMelica, fBriza, 
fDactylis, fCynosurus, fPoa, fGlyceria, fFestuca, 
t Bromus, + Brachypodium. 
XI. Chlorideae (spikelets in 2 rows approximated to one 
another, forming a one-sided spike or raceme with un- 
jointed axis): tCynodon, fSpartina, Chloris, Bouteloua, 
Eleusine. 
XII. Hordeeae (spikelets in 2, or rarely more, opp. rows, form- 
ing a symmetrical, rarely one-sided, spike): fNardus, 
fLolium, fLepturus, tAgropyrum, Secale, Triticum, 
tHordeum, fElymus. 
b. Stem woody, at least below ; leaf often petiolate, finally 
separating from its sheath by a joint. 
XIII. Bambuseae : Arundinaria, Bambusa, Dendrocalamus. 
The genera marked with a dagger (+) are those of the British 
flora. Many are rare and unimportant. Space will not permit of 
giving a key to the genera ; the student should work through the 
commoner ones with a flora, or with Ward or Hutchinson’s British 
Grasses. G. are placed in Glumaceae by Bentham-Hooker, in Glurni- 
florae by Warming. 
Grammanthes DC. Crassulaceae. 1 sp. S. Afr. 
Grammatophyllum Blume. Orchidaceae (24). 4 sp. Malaya. G. 
speciosu?7i Bl. is about the largest known orchid. 
Graphephorum Desv. Gramineae (x). 1 sp. N. Am. 
Graptophyllum Nees. Acanthaceae (iv. b). 5 sp. Austr., Polynesia. 
G. hortense Nees ( G.pictutn Griff.) is cultivated for its prettily marked 
leaves. 
Gratiola (Rupp.) Linn. Scrophulariaceae (11. 8). 25 sp. cosmop. 
Sta. 2. The dried plant of G. cfficiiwlis L. was formerly officinal. 
Grevillea R. Br. Proteaceae (11). 160 sp. Austr. Trees and shrubs 
with leaves of various kinds and racemose infls., with 2 firs, in each 
axil. The style projects from the bud as a long loop, the stigma 
being held by the perianth until the pollen is shed upon it. Then 
the style straightens out, and the pollen may be removed by visiting 
insects, the stigma not being yet receptive ; presently the female stage 
supervenes, and if all the pollen has not been removed, autogamy 
may occur. Some sp. yield useful timber, and G. robusta A. Cunn. 
(silky oak) and other sp. are now very extensively employed as shade 
and limber trees in Ceylon and elsewhere. 
Grewia Linn. Tiliaceae. 90 sp. As., Afr., Austr., esp. trop. 
Grias Linn. Lecythidaceae. 4 sp. S. Am., W. Ind. G. caulijlora L., 
the anchovy pear, is cult, in the W. Ind., &c. 
Griffithella Warming. Podostemaceae. 1 sp. W. Ghats of India. 
Plants with the general vegetative structure of Dicraea, but remark- 
able for the extraordinary polymorphism of their shoots, which may 
