GUTTIFERAE 307 



common in dry countries. Three chief classes: arabin (fully soluble), 

 type gum-arabic (Acacia Senegal Willd.), bassorin (slightly soluble), 

 type gum-tragacanth (Astragalus gummifer Labill.) and cerasin 

 (swelling), type cherry-gum (Prunits Cerastes L.). Cf. above, and 

 Ckloroxylon, Feronia, Piptadenia, &c. ; -ammoniacum, Dorema ; 

 Angico-, Piptadenia ; -arabic, Acacia Senegal Willd. ; -benzoin, 

 Styrax; blue-, Eucalyptus; chewing-, Achras Sapota L. ; Chicle-, 

 ditto; -cistus, Cist us; -copal, cf. Copal; doctor's- (W.I.), Rhus 

 Metopinm L. ; -elemi tree (W.I.), Dacryodes hexandra Griseb. ; 

 -euphorbium, Euphorbia resmifera Berg. (Morocco) ; -galbanum, 

 Ferula ; -guaiacum, Guaiacttm ; -kino, cf. Kino ; -lac, cf. Lac ; 

 -ladanum, Cistus ; -olibanum, Boswellia ; -opopanax, Opopanax ; 

 -plant (Am.) Grindelia ; -resins, resins containing a mixture of gum 

 and resin, Boswellia (frankincense), Calopliyllum, Convolvulus, 

 Dorema, Ferula, Garcinia (gamboge) ; -sandaracb., Tetraclinis 

 sweet-, Liquidambar ; -tragacanth, Astragalus ; -tree, Nyssa,(W.I.) 

 Sapiitm . 



Gumbo, Hibiscus esculentus L. 



Gumillea Ruiz et Pav. Cunoniaceae. i Peru. L. alt. 



Gundelia (Tourn.) L. Compositae (10). i As. Min., Persia. 



Gundlachia A. Gray. Compositae (3). i Cuba, St. Domingo. 



Gundlea Steud. = Grumilea Gaertn. (Rubi.). 



Gunnera L. Haloragidaceae. 18 S. Am., Costa Rica, N.Z., Tasm., 

 Sandw. Is., Java, S. Afr. Several are enormous herbs with 1. several 

 feet across. PI. 2-merous. G i-loc. Stem polystelic. In the leaf- 

 axils are ' squamulae intravaginales ' (cf. Potamogetonaceae). Cult, 

 orn. fol. 



Gunnia F. Muell. Aizoaceae (n). 2 S. and W. Austr. 



Gunniopsis Pax (Aizoon p.p.)- Aizoaceae (n). i S.E. Austr. 



Gunny, Corchorus. 



Gunpowder plant, Pilea. 



Gurania Cogn. Cucurbitaceae (2). 55 trop. Am. 



Guraniopsis Cogn. Cucurbitaceae (2). i Peru. 



Gurjun balsam, Dipterocarpus. 



Gussonea A. Kich. = Angraecum Bory p.p. (BH.) = Mystacidium Lindl. 

 p.p. 



Gustavia L. (Japarandiba Adans.). Lecythidaceae. 20 trop. Am. 

 G. augusta L. is the stink-wood; the wood has a foetid smell. 



Gutenbergia Sch. Bip. Compositae (i). 10 trop. Afr. 



Guthriea Bolus. Achariaceae. i S. Afr. 



Gutierrezia Lag. Compositae (3). 20 Am. 



Gutta-jelutong, Dyera ; -percha, a substance like rubber, but softening 

 with heat, in latex, esp. of Sapotaceae; cf. Bassia, Mimusops, Pala- 

 quium, Payena ; -puteh, Palaquium ; -rambong, Ficns ; -sundek, 

 Payena. 



Guttiferae (EP. ; BH.. excl. Hypericaceae, incl. Quiinaceae). Dicoty- 

 ledons (Archichl. Parietales). 42 gen., 850 sp. chiefly trop. They 

 are (exc. Hypericum) trees or shrubs with simple entire opp. exstip. 1. 

 Oil glands or passages are always present, often showing as translucent 

 dots upon the 1. The infl. is cymose, frequently umbellate. The fls. 

 show considerable variety. The bracteoles are frequently close up 



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