safford: classification of rollinia 375 



Rollinia Sieberi A. DC. Mem. Soc. Phys. Geneve, 5: 200, pi. 2, fig. B. 

 1832. 



This species resembles R. mucosa, from which it differs in its smaller 

 flowers, more slender pedicels, and thinner and more delicately veined 

 leaves. De Candolle, who regarded it as specifically distinct from 

 R. mucosa (which he mentions), figures the flower as solitary, with 

 laterally compressed corolla lobes, rounded at the extremities and 

 curving slightly upward. 



Type Locality: Island of Trinidad, British West Indies, where it 

 was collected by Sieber (No. 96) and distributed under the name 

 Annona reticulata. 



The fruit, according to Pere Duss, is usually larger than that of 

 Annona squamosa, which it resembles in its raised, squamose areoles 

 and its pleasantly flavored, sweet, fleshy pulp. A specimen in the 

 U. S. National Herbarium collected in Porto Rico by Sintenis (No. 

 4170) is referred to this species. Urban 3 refers this plant to R. mucosa 

 but adds that the Porto Rico specimens have smaller flowers than 

 specimens of R. mucosa from other localities. To the writer R. Sieberi 

 appears to be a valid species. It is certainly quite distinct from Annona 

 obtusifiora De Tussac, of which Baillon believed it a synonym, and 

 also from the Mexican plants referred by Baillon to R. mucosa, collected 

 by Liebmann at Mecapulco (No. 27) and Mirador (No. 28), the origi- 

 nal specimens of which, with leaves velvety pubescent beneath, are 

 before me. Specimens with flowers and fruit from Trinidad, the type 

 locality of the species, are desired. 



GROUP B 



COROLLA LOBES OBLONG OR SPATULATE, HORIZONTAL OR CURVED 



DOWNWARD 



Rollinia deliciosa Safford, sp. nov. Figure 2. 



Rollinia orthopetala Correa, Flora do Brazil, p. 22. 1909, not De 

 Candolle. 



A medium-sized tree. Blades of the vegetative leaves obovate-oblong 

 or elliptical, rounded or acute at the base, normally acuminate at the 

 apex, 20 to 28 cm. long, 7.5 to 11 cm. broad, membranaceous, when 

 young sparsely canescent-hirtellous above, densely so beneath, espe- 

 cially along the midrib and nerves, at length glabrous above and beneath 

 except along the midrib and primary nerves (18 to 22 on each side), 

 these reddish brown, slender but prominent beneath; petiole about 

 10 mm. long; blades of the leaves of the flowering branches smaller, 

 the lowermost ones relatively shorter and broader, sometimes broadly 



3 Symb. Antill., 4: 242. 



