safford: classification of rollinia 383 



Rollinia glaucescens Sond. Linnaea, 22: 557. 1849. 



A glabrescent shrub. Leaf blades thinly membranaceous, ovate or 

 lanceolate, obtuse or rarely acute at the apex, acute at the base, 5 to 7 

 cm. long, 2:5 cm. broad, glaucescent beneath; petioles 6 to 10 mm. long. 

 Peduncles in pairs, one shorter than the other, the longer one bearing 

 a small bracteole below the middle. Flowers canescent-puberulous; 

 corolla wings broadly obovate or suborbicular, widely spreading. 

 Fruit broadly ovoid or subglobose, small (about 2.5 cm. in diameter), 

 solid, and smooth, the component carpels scarcely outlined and not 

 at all gibbous. 



Type collected in the Province of Minas Geraes, Brazil, by Regnell 

 on his second expedition. 



This species is closely allied to R. emarginata Schlecht., a species 

 well known to Sonder. From this it differs in its leaves, which are 

 never emarginate, and in its smaller flowers. Specimens in the U. S. 

 National Herbarium were collected and photographed at Sao Joao 

 de Rey, Minas Geraes, in January, 1914, by Messrs. Dorsett, Shamel, 

 and Popenoe (No. 286). Plants have been propagated from the seed of 

 these specimens by the Office of Foreign Seed and Plant Introduction 

 (No. 37880). 



Rollinia sylvatica (St. Hil.) Mart. Fl. Bras. IS 1 : 18. 1841. 



Annona sylvatica St. Hil. PI. Usuelles, pi. 29; Fl. Bras. Merid., 1: 

 32. 1825. 



A medium-sized tree. Leaves large, elliptical, somewhat resembling 

 those of Annona cherimola, but usually acutish at the base and obtuse 

 or very shortly cuspidate, rarely oblong-elliptical and acute or acumin- 

 ate, above usually puberulous, beneath softly pubescent. Peduncles 

 extra-axillary. Fruit usually solitary, edible. 



Type collected by St. Hilaire in the forests of Minas Geraes, Brazil. 

 Fruit, locally known as araticu do mato (custard apple of the forest), 

 ripening in March. 



At least two species are usually found in herbaria labelled R. sylvatica: 

 one with elliptical leaves, very much like those of the chirimoya, and 

 suborbicular corolla wings; the other with lanceolate leaves shaped 

 very much like those of R. laurifolia, and with spatulate corolla wings. 

 In both, the leaves are pubescent beneath. The first corresponds 

 more nearly to the type described by St. Hilaire, in which flowers 

 were lacking. Specimens in the National Herbarium recently col- 

 lected and photographed in the field by Messrs. Dorsett, Shamel, and 

 Popenoe at Bom Fim (No. 436) and Lavras (No. 250) are referred to 

 this species. Probably distinct from this is a tree growing to a height 

 of 20 to 25 feet, rarely cultivated in gardens at Sao Joao del Rey, in 



