Tas. 5795. . 
DORSTENTA ARGENTATA. 
Stlvered-leaved Dorstenia. 
Nat. Ord. More&.—Monecia DrsaNnpria. 
Gen. Char.—Receptaculum carnosum, concavo-planum. Flores plurimi i 
alveolis receptaculi, masculi femineis mixti. Masc. Alveoli superficiales. 
Perigonium 0 vy. lobi 8 ad orem alveoli. Stamina 1 v. plura, filamentis fili- 
formibus; anthere 2-loculares, globoso-didyme. Frm. in foveolis recep- 
taculi solitarii. Perigonium 0. Ovarium breviter stipitatum, ovatum, 
1-loculare; stylus lateralis, filiformis, stigmate 2-fido; ovulum 1, parieti 
styligeri appensum. Utricudé demum circumscissi, receptaculo subsucculento 
immersi. Semen uncinatum, testa crustacea; embryo uncinatus—Herbe 
Americe tropice incole, acaules v. caulescentes. Folia varia, radicalia v. 
caulina et alterna. Capitula scapos radicales v. pedunculos axillares termi- 
Mantia, 
Dorstexta argentata ; caule e basi radicante prostrato erecto puberulo folioso 
purpurascente, foliis alternis breviter petiolatis oblongis v. anguste 
lanceolatis, apice attenuato obtuso apiculato, obscure sinuato-dentatis, 
supra et subtus ad nervos patentes puberulis siccitate scabridis, disco 
supra late irregulariter argentatis margine saturate viridi, petiolo brevi 
costaque subtus fusco-purpureis, stipulis subulatis persistentibus, pedun- 
culis axillaribus, receptaculis, orbicularibus pubescentibus leviter con- 
cavis margine processibus brevibus subcapitellatis ornato, alveolis disci 
fomineis marginis masculis monandris, perigonii lobis 3. 
A remarkably pretty variegated-leaved stove plant, a 
native of South’ Brazil, for which the Royal Gardens are in- 
debted to Mr. Wilson Saunders, F.R.S., of Reigate. It is 
not described by Miquel in the monograph of the Brazilian 
species, which has appeared in Martius’s Flora Brasiliensis, 
but there are dried specimens in the Kew Herbarium sent by 
Dr. Fritz Miiller, of Sta. Catherine, South Brazil. 
Duscr. Stem nearly simple, terete, horizontal and rooting 
for a foot or so, sending up few ascending simple leafy branches 
six to twelve inches high; branches dull purple, terete, pu- 
SEPTEMBER Ist, 1869, 
