GUTTIFERAE 
403 
Guettarda Linn. Rubiaceae (11. 12). 40 sp. trop., all but one in Am. 
Guilandina Linn. = Caesalpinia Linn. 
Guilleminea H. B. et K. Amarantaceae (3). 3 sp. Am. 
Guizotia Cass. Compositae (v). 5 sp. Atr. G. abyssinica Cass, is 
cultivated for its oily seeds, from which Rantil oil is expressed. 
Gunnera Linn. Haloragidaceae. 17 sp. S. Am., N. Z., Tasm., Sandw. 
Is., Java, S. Afr., Costa Rica. Several sp. are enormous herbs 
with very handsome leaves several feet across. They grow by the 
side of water and deserve more attention as ornamental plants than 
they have hitherto received. Fir. 2-merous. Ovary i-loc. Stem 
polystelic. In the leaf-axils are 4 squamulae intravaginales ’ (cf. 
Potamogetonaceae). [See Jonas’ Inaug. Diss., abstr. in Beihefte z. 
Bot. Cent. 1894, p. 32.] 
Gurania Cogn. Cucurbitaceae (11). 49 sp. trop. Am. 
Gustavia Linn. (Japarandiba Adans.). Lecythidaceae. 20 sp. trop. 
Am. G. augusta L. is the stink-wood ; the wood has a foetid smell. 
Gutierrezia Lag. Compositae (ill). 20 sp. Am. 
Guttiferae. Dicotyledons (Archichl. Parietales). 42 gen. with 450 sp. 
chiefly trop. As defined by Engler, the order includes the Hyperi- 
caceae of Bentham and Hooker (and other authors) as well as a few 
of the Ternstroemiaceae. They are (exc. Hypericum) trees or shrubs 
with simple entire opp. exstip. leaves. Oil glands or passages are 
always present, often showing as translucent dots upon the leaves. 
The infl. is cymose, frequently umbellate. The firs, show consider- 
able variety in structure. The bracteoles are frequently close up to 
the calyx, and hardly to be distinguished from it. The axis is usually 
convex, but exhibits many forms. The flr. may be cyclic or partly 
spiral, and is usually regular, $ , hypogynous. Calyx imbricate. 
Corolla imbricate or convolute. Sta. 00 , free or united in various 
ways, frequently in bundles (usually regarded as due to branching of 
originally simple papillae) ; very commonly the outer ones or even all 
of the sta. are staminodial. G usually (5) or (3), multi- or i-loc. ; 
ovules 00, few, or 1, anatropous; styles free or united. Fruit often 
capsular, sometimes a berry or drupe. Seed exalbuminous. [For 
details of the great variety in floral structure, see Engler in Nat. P/E] 
Many yield useful timber ; the resins of Clusia, Garcinia, Calophyl- 
lum, &c., and the fruits of Garcinia and others are valuable. 
Classification and chief genera (after Engler) : the G. are closely 
allied to Theaceae, the only constant distinction being the presence 
of oil-glands, and to Dipterocarpaceae, which are chiefly distinguished 
by their alt. stip. leaves. The characters of the sub- orders would 
occupy too much space, and we give therefore only those of the 
Hypericoideae, which are often made into an independent order. 
I. KIELMEYEROIDEAE: Kielmeyera, Caraipa. 
II. HYPERICOIDEAE (leaves opp.; flr. ^ ; sta. usually 00, 
usually in 5 or 3 — 8 bundles before the petals; styles 3 — 5, 
26 — 2 
