Part 3, 1911 J BURSERACEAE 259 



Leaf margins undulate. 3. /. Copal. 



Leaf margins not undulate. 



Petals pvibeseent on the outside. 



Inflorescence glabrous ; ovary glabrous. 4. I. glabra. 



Inflorescence pubescent ; ovary more or less pubescent. 



Leaflets hairy along the midrib on upper surface. 5. I. costaricensis. 



Leaflets not hairy along the midrib on upper surface. 



Leaflets narrowly lanceolate, long-acuminate. 6. I. confusa. 



Leaflets broadly "oblong, short-acuminate. 7. /. PitHeri. 



Petals glabrous on the outside. 



Inflorescence somewhat pubescent. 



Ovary glabrous ; leaflets glossy. 8. I.lucida. 



Ovary pubescent ; leaflets dull. 9. /. Palmeri. 



Inflorescence quite glabrous. 



Leaflets very glossy above. 10. /. cubensis. 



Leaflets dull above. 



Leaflets oblong. 11. I. panamensis. 



Leaflets lanceolate. 12. /. attenuata. 



1. Icica fragrans Rose, sp. now 



A tree 12-13 meters high, with a trunk 3 dm. in diameter; branches brownish, glabrous; 

 leaves 7-9 cm. long, on long petioles, the petiolules elongate, the lateral ones 1.5-2.5 cm. 

 long, the terminal one 4 cm. long ; leaflets 3, 10-15 cm. long, glossy and finely reticulate 

 above, paler, duller, and less reticulate beneath, oblong, with a broad cuneate base, 

 acuminate, the lateral nerves few, distant, somewhat sunken above, prominent beneath ; 

 inflorescence shorter than the petioles; flowers unknown; fruit 2 cm. long, somewhat 

 pointed, often flattened. 



Type collected on the bank of Yamaniquey River, Oriente, Cuba, 1910,/. A. Shafer 4240 (herb. 

 N. Y. Bot. Card.). 



2. Icica sessiliflora Rose, sp. now 

 Doubtless a tree ; branches glabrous ; leaves large, 3-4 dm. long ; petiole 7-12 cm. 

 long, terete, glabrous ; leaflets 5-7, oblong, 10-18 cm. long, rounded or slightly narrowed 

 at base, abruptly short-acuminate, glabrous; lateral nerves 10-20; inflorescence paniculate, 

 1-2 cm. long, puberulent; flowers sessile; calyx-lobes broadly ovate, acute, 1 mm. long; 

 petals glabrous, 3 mm. long ; stamens about as long as the petals. 



Type collected at Santo Domingo de Golfo Dulce, Costa Rica, March, 1896, A . Tonduz 6989 (U. 

 S. Nat. Herb. no. 398230). 



3. Icica Copal Schlecht. & Cham. Linnaea 5 : 601, 744. 1830. 



Prohum Copal Engler, in DC. Monog. Phan. 4 : 83. 1883. 



A tree ; leaflets 7, subcoriaceous, oblong-elliptic, usually broad at base, 10-18 cm. long, 

 3-5 cm. broad, glabrous, entire but the margins somewhat undulate ; nerves rather 

 prominent ; inflorescence paniculate, with appressed hairs, much shorter than the leaves ; 

 calyx 4-parted, the lobes triangular; petals 4, twice as long as the calyx; ovary 2-celled, 

 glabrous at apex. 



Type locality : Vera Cruz. 

 Distribution : Eastern Mexico. 

 Illustration : Schlecht. Hort. Hal. pi. 12. 



4. Icica glabra Rose, sp. now 

 Probably a tree ; branches light-colored, glabrous ; leaflets 5, oblong, thickish, glabrous, 

 rounded or slightly narrowed at base, short-acuminate, 10-15 cm. long, entire; inflores- 

 cence nearly glabrous, weak, 5-7 cm. long, narrow ; calyx 4-lobed, the lobes broad and 

 rounded at apex or slightly apiculate, nearly or quite glabrous ; petals 4, pubescent with- 

 out ; ovary glabrous; fruit not seen. 



Type collected in forest of Buenos Aires, Costa Rica, in 1892, A. Tonduz 6682 (herbarium of 

 Capt. John Donnell Smith). 



5. Icica costaricensis Rose, sp. nov. 

 A tree ; young branches light-colored, very pubescent ; rachis of leaves pubescent ; 

 leaflets 5, lanceolate, thinnish, pubescent on both surfaces especially along the veins, nar- 

 rowed at base, sometimes cuneate, attenuate above, 7-12 cm. long, entire; inflorescence 



