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VII. On Begoniella, a New Genus of Begoniaceæ from New Granada. By Professor 
OLIVER, F.R.S., PLS. &c. 
(Plate XLI.) 
Read April 18th, 1872. 
BEGONIELLA, Oliv. gen. nov. Begoniacearum. 
Char. Gen. Flores monoici. MascuLr: perianthium simplex gamophyllum campanulatum erectum, 
limbo breviter et late 4-lobo. Stamina 4, monadelpha; antherz obovato-cuneate 2-fide v. ob- 
cordatæ, loculis 2 lateralibus discretis, connectivo latiusculo membranaceo nervo centrali apice bifido 
percurso, Faminer: perianthium maris. Ovarium inferum 3-loculare 3-alatum, vertice leviter 
aut vix productum, alis subfalcatis acutatis, placentis ex angulis interioribus lanceolatis indivisis 
multiovulatis ; stylus fere a basi fastigiatim multifidus, ramis divisis vel breviter furcellatis. Capsula 
3-alata, septicide dehiscens, polysperma.— Herba habitu Begonie, 3-13-ped., papilloso-setigera. Folia 
alterna membranacea oblongo-elliptica acuminata, basi obliqua, stipulata. Flores coccinei bracteati 
in racemos axillares erectos dispositi. 
B. WHITEI, sp. unica. 
Caulis erectus papilloso-setigerus, internodiis 3-13 poll. longis. Folia alterna oblongo-elliptica acuminata, 
basi obliqua, inzqualiter crenato-serrata crenulis setigeris, pennivenia, supra areolatim setoso- 
pilosula, subtus ad nervos pubescentia, 21—4 poll. longa, 1-13 poll. lata; petiolus ;4—1 poll. 
longus, v. folia superiora subsessilia. Stipule subpersistentes ovato-lanceolate 1-1 poll. long. 
Hacemi axillares erecti pluriflores pedunculati simplices v. furcati folio æquilongi v. eodem breviores. 
Bractee distiche membranaceæ colorate ovato-oblongæ cymbiformes v. conduplicate, dorso v. 
precipue in carina papilloso-pilosule, 4-4 poll. longæ ; pedicelli graciles pilosuli, fl. masc. bracteam 
superantes. Perianthium tubuloso- v. infundibuliformi-campanulatum, ore breviter latiuscule 
4-lobatum, extus basin versus pilosulum, 3 poll. longum, + poll. latum. FV. masc.: Stamina 4 
inclusa in columna centrali brevi monadelpha ; antheræ subsessiles v. filamentis brevissimis, obovato- 
cuneatz, loculis discretis a basi leviter divergentibus, connectivo membranaceo apice 2-dentato. 
Fl. fem.: Ovarium 3-alatum pilosulum ; stylus multifidus perianthio 4—5-plo brevior. Capsula 
sicca ¿-3 poll. diametro. 
This most interesting little plant was transmitted to Dr. Hooker by R. B. White, Esq., 
of Medellin, New Granada, with the accompanying memorandum :— 
** The enclosed plant was found by me in a new * trocha” or path through the forests 
of the Atrato valley, at a point, say, thirty miles due east of the town of Quiblo, on the 
Atrato river. Elevation 150 metres above the level of the sea; mean temp. 29” cent. ; 
zone of perpetual moisture. 
* T have no other specimens; and the seeds have become mouldy. 
“The plant grows from 9 to 18 inches high in stony wet places; and the velvety leaves, 
dark green above and rieh purplish crimson below, when wet, as they always are, throw 
into brilliant relief the bright scarlet spikes of flowers, or, when the underside of the 
