402 
GRAMINEAE 
Gynerium, Arundo, fPhragmites, fTriodia, tMolinia, 
Eragrostis, tKoeleria, tCatabrosa, t Melica, fBriza, 
fDactylis, f Cynosurus, + Poa, tGlyceria, 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) : fCynodon, 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, fAgropyrum, Secale, Triticum, 
fHordeum, tElymus. 
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 Hutchinson’s British Grasses. [G. 
are placed in Glumaceae by Benth.-Hooker, in Glumiflorae by 
Eichler and Warming.] 
Grammanthes DC. Crassulaceae. 1 sp. Cape Col. 
Gratiola (Rupp. ) Linn. Scrophulariaceae (11. 8). 24 sp. cosmop. Sta. 2. 
The dried plant of G. officinalis 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. 
Grewia Linn. Tiliaceae. 90 sp. As., Afr., Austr., esp. trop. 
Grindelia Willd. Compositae (ill). 25 sp. Am. 
Griselinia Forst. f. Cornaceae. 2 sp. N. Z. 
Griselinia Scop. = Pterocarpus Linn. 
Gronovia Houst. ex Linn. Loasaceae (1). 2 sp. trop. Am. Sta. 5, 
and no staminodes. Cpl. 1. 
Grossularia Tourn. ex Adans. = Ribes Linn. 
Grubbia Berg. Grubbiaceae (the only genus). 3 sp. Cape Col. 
Grubbiaceae. Dicotyledons (Archichl. Santalales). Only genus Grub- 
bia. United to Santalaceae by Benth.-Hooker. [See Nat. PJl .] 
Guaiacum Plum, ex Linn. Zygophyllaceae. 4 sp. N. and trop. Am. 
G. officinale L. yields the valuable lignum-vitae wood, from which is 
also obtained the medicinal resin guaiacum. 
Guatteria Ruiz et Pav. Anonaceae (2). 50 sp. trop. Am. 
