38 



MEMOIRS OF THE NEW YORK BOTANICAL GARDEN [ Vol. 8, No. 1 



km. north of Huigra, 5,000—6,500 ft c , (moist forested valleys in the afternoon fog- 

 belt), E-3435. Canar: rhizomatous, plants to 2 m., leaves glossy above, pallid 

 below, two outer segments of perianth of staminate flower white with pink splotch 

 in center, inner two segments pure white, perianth of pistillate flower white; be- 

 tween Suscal and Chontamarca, north rim of the valley of the Rio de Canar, 

 Manuel Giler, E-2853. 



Begonia Froebelii A. DC. 



Chimborazo: plants tuberous, leaves deep green above, pale-pubescent below, 

 peduncles pink, pedicels deep pink to crimson, ovary green with crimson puberu- 

 lence, perianth-segments of both flowers deep pink to crimson, anthers and stig- 

 mas yellow, large plants in shade, small ones on sunny bank, canon of the Rio 

 Chanchan, about 5 km. north of Huigra, 5,000—6,500 ft., (moist forested valleys 

 in the afternoon fog-belt), E-3289. Canar: base tuberous, stem red, floral parts 

 bright crimson, between Tambo and Suscal, 2,000—3,000 meters, north rim of the 

 valley of the Rio de Canar, M. Giler, E-2759. 



Begonia glabra Aubl. 



Junction of Provinces of Guayas, Canar, Chimborazo and Bolivar: plants 

 climbing tree-trunk to 11 m., leaves pale green; foothills of the western Cordillera 

 near the village of Bucay, 1,000—1,250 ft., E-3754. El Oro: plants climbing to 5 

 m. or more, flowers white; in Moro-Moro region (about 21 miles west of Portovelo), 

 3,400—4,200 ft., in dense rain forest, E-630. Santiago-Zamora ( ,< Oriente ,, ): to 

 1.5 m., flowers pink; eastern slope of the cordillera, valley of the Rios Negro 

 and Chupianza (on trail from Sevilla de Oro to Mendez), E-769. 



Begonia griseocaulis Irmsch. 



Chimborazo: stems coarse, to 1 m. high, 10 cm. diameter, leafless at this 

 season; peduncles to 1.5 m. long; bracts pink; flowers white to light pink; nearly 

 mature fruit pale greenish, flushed with pink; canon of the Rfo Chanchan, from 

 Naranjapata to below Huigra, 2,000-3,000 ft., E-3862, 



Begonia guaduensis HBK. 



Santiago-Zamora ("Oriente"): erect, 2 meters, flowers white, 10 km. upstream 

 from Zamora, 4,500 ft., valley of the Rfo Zamora, east of Loja, E-54. New to 

 Ecuador. 



Begonia Holtonis A. DC, (B. Schimpfii Irmscher). 



Junction of the Provinces of Guayas, Canar, Chimborazo and Bolivar: plants 

 much-branched, climbing to several meters, stem and pedicels red, leaves pale 

 green with red margin, flowers flushed with pink; foothills of the western cor- 

 dillera" near the village of Bucay, 1,000-1,250 ft., E-3662. 



Begonia humilis Aito 



Santiago-Zamora ("Oriente"): low plants on bank; stems red; leaves pale 

 green above, paler below; peduncles bright red; perianths of both male and female 

 flowers white; fruit pale yellow-cream with greenish tint, brown when mature; 

 uplands just south of Rfo Chupianza, valley of the Rio Upano, from the Rfo Paute 

 north ca. 17 km. to the Chupiangas, 1,950-2,200 ft., E-1442. 



Begonia Ludwigii Irmsch. 



Chimborazo: plants from heavy, usually erect stems, sometimes to 1 m. high 

 and 10 cm. diameter at base, inflorescence peduncles to 1 m. long, petioles to 

 0.5 m. long, leaves pale green, dull above, green or sometimes reddish-tinged 

 below, flowers white, tinged with pink; canon of the Rio Chanchan, about 5 km. 

 north of Huigra, 5,000-6,500 ftc, (moist forested valleys in the afternoon fog- 

 belt), E-3317. 



