378 safford: classification of rollinia 



falcate, horizontally spreading and curved downward, rounded at the 

 apex, narrowed at the base; inner corolla lobes very small, triangular, 

 connivent, almost closing the orifice above the essential parts. Fruit 

 not observed. 



Type in the U. S. National Herbarium, No. 679511, collected near 

 sea level, on the plain of Sperdi, near Puerto Obaldia, San Bias Coast, 

 Panama, September, 1911, by Henry Pittier (No. 4358, in flower.) 



This beautiful species is remarkable for the pale under surface of 

 its leaves, beautifully veined with reddish brown, and its clustered 

 inflorescence. It differs from R. rufinervis Triana & Planch, in hav- 

 ing the corolla lobes curving downward instead of divergent-ascending. 

 Specimens of the fruit are desired. 



Rollinia Jimenezii Safford, sp. nov. Figure 3. 



A small tree of Costa Rica, resembling R. mucosa, but the flowers 

 in clusters of 2 or 3, the corolla wings horizontally spreading and slightly 

 decurved, the fruit when fresh resembling that of the common sugar- 

 apple (Annona squamosa), its component carpels rounded at the tips 

 but when dry more or less beaked. Leaves ovate to oblong-elliptical, 

 acuminate at the apex, those of the vegetative branches 18 to 30 cm. 

 long, 6.5 to 14 cm. broad, obtuse at the base, with 18 to 22 primary 

 nerves on each side, the leaves of the flowering branches smaller, with 

 12 to 16 pairs of primary nerves, usually rounded at the base; point of 

 acumen usually obtuse or retuse; young branches, petioles, and lower 

 surface of young leaves pubescent with ferruginous hairs, the leaves 

 at length glabrous or- nearly so except along the midrib and nerves 

 beneath. Peduncles extra-axillary, often leaf-opposed, in clusters 

 of 2 or 3, graduated in length, the longest about 2 cm. long, ferruginous- 

 tomentose like the ovate-acuminate calyx lobes. Corolla lobes ob- 

 long, rounded at the tip, slightly narrowed at the base, widely spread- 

 ing and usually decurved, never curving upward and inward, rufous- 

 puberulent. Fruit subglobose, about 6 cm. in diameter, 6 to 10 cm. 

 long, closely resembling that of Annona squamosa, the component 

 carpels loosely adhering, very gibbous, rounded or often retuse at the 

 tip when fresh; pulp white, acidulous, edible, but not so .agreeably 

 flavored as that of Annona squamosa. 



Type material in the U. S. National Herbarium, collected by Oton 

 Jimenez at Nuestro Amo, Province of Alajuela, Costa Rica; flowers 

 collected March, 1912, (No. 427), and fruit from the same tree, October, 

 1912 (No. 543). The accompanying figure is drawn from type material 

 and from a field photograph of the fresh fruit. 



The author takes great pleasure in naming this species in honor 

 of Mr. Oton Jimenez, of San Jose, Costa Rica, an accomplished young- 

 botanist to whom he is indebted for herbarium specimens of the plant, 



