safford: new genus rolliniopsis 203 



species by Martius 4 the leaves are described as " ovate, ovate-lanceolate, 

 or lanceolate," and two varieties are indicated: var. a latifolia and var. 

 /3 angustifolia. Whatever varieties may be established, that which 

 corresponds with the original description of the species must be regarded 

 as the type form ("Rollinia foliis oblongis, acuminatis, basi acutis"). 

 A specimen in the U. S. National Herbarium (No. 703471), collected 

 by Riedel "in sylvis montosis prope Rio Janeiro, 1829," with most of 

 the leaf blades broadly elliptical or oval and acuminate, belongs un- 

 doubtedly to the variety latifolia. The blades of the smaller leaves at 

 the base of the flowering branchlets of this specimen are orbicular. It 

 is quite possible that the leaves of vegetative branches would be rela- 

 tively narrower, like those of the type described by St. Hilaire. 



Distribution : Known only from Brazil. Primeval forests of Mount 

 Tejuca, vicinity of Rio de Janeiro, St. Hilaire (type, as cited above); 

 Glaziou 6077 ; Mount Gabia and neighboring hills, Martius, Sellow, and 

 Lhotzky; Serra Tingud, Schott; Rio de Janeiro, without definite locality, 

 Selloio, Riedel; "Versant de Copacabana," January 26, 1870, Glaziou 

 3859; without definite locality, Glaziou 2120. 



4. Rolliniopsis leptopetala (R. E. Fries) Safford. 



Rollinia leptopetala R. E. Fries, Kongl. Sv. Vet. Handl. 34 5 : 50. pi. 

 7, f. S, 4. 1900. 

 A tree or shrub, with gray to blackish gray bark, that of the young 

 branches dotted with numerous light-colored lenticels; young branch- 

 lets, petioles, and peduncles tomentose with projecting yellowish hairs. 

 Leaf blades broadly elliptical, rounded at the base and rounded or sub- 

 emarginate at the apex, variable in size, reaching the dimensions of 

 8 cm. in length and 4.5 cm. in breadth, membranaceous, clothed on the 

 upper surface more or less densely with short white hair's, at length 

 glossy though still bearing scattered hairs; on the lower surface clothed 

 with a uniform tomentellum of yellowish white hairs; midrib impressed 

 above, beneath prominent, reddish brown like the principal lateral 

 nerves (6 to 8 on each side) ; petioles 5 to 8 mm. long, narrowly grooved 

 above. Peduncles 1 to 1.5 cm. long, bearing at the base and at the 

 middle two small acute hairy bracteoles (1 mm. long). Flowers red, 

 fragrant. Calyx lobes 2 mm. long, 2.5 mm. broad, rounded and abrupt- 

 ly acuminate at the apex, united at the base, clothed outside with 

 reddish hairs, glabrous within. Outer petals obtuse, each bearing a 

 thin ferruginous-pilose, rounded or cuneate wing 8 to 11 mm. long and, 

 near the rounded apex, 6 to 8 mm. broad; inner petals (corolla lobes) 

 2.5 mm. long, 3 mm. broad, suborbicular, obtuse, clothed outside with 

 minute grayish hairs, glabrous within. Stamens scarcely 1 mm. in 

 length. Fruit (observed only on 1 specimen) spheroidal, 1.5 cm. in 



4 Fl. Bras. 13': 19. 1872. 



