Vol 8, No. 1 MEMOIRS OF THE NEW YORK BOTANICAL GARDEN March 26, 1952 



PLANTS COLLECTED IN ECUADOR BY W. H. CAMP. 

 BEGONIACEAE 



Lyman B. Smith and Bernice G. Schubert 



Begonia acerifolia HBK. 



Loja: flowers white, petals frilled, corolla 3 cm. diameter; when immature the 

 large wing of fruit pink, the smaller wings pale green; petioles and pedicels bright 

 salmon color; leaf-blades concolor, dull green (one plant found with variegated 

 leaves); plant rhizomatous, the rhizomes and often the plant base enlarged and 

 tuberous; in moist shaded places, Nudo de Cajanuma, 7 km. south of Loja, 8,000— 

 8,400 ft., E-222. 



Begonia aequatorialis Smith & Schubert. 



Chimborazo: plants on soil (or sometimes epiphytic), from short tuberous rhi- 

 zomes; leaves deep green above, pale below; perianth segments rosy pink; Canon 

 of the Rfo Chanchan, about 5 km. north of Huigra, moist forested valleys in the 

 afternoon fog-belt, 5,000-6,500 ft., E-3268. 



Begonia aeranthos Smith & Schubert, sp. nov. Fig. 2. 



Herba e fragmentis solum cognita, alte scandens (! Camp), nodis radicans, 

 omnino glabra; foliis 3—7 mm. supra basin peltatis, rectis vel paulo obliquis, 

 paulo asymmetricis, ovatis, ad 24 cm. longis, 7—11 cm. latis, abrupte acuminatis, 

 basi late truncatis, margine leviter undulatis, minute sparseque denticulatis, 



Fig. 2: a, Begonia aeranthos Smith & Schubert, leaf X0.25; b, inflorescence 

 X0.25; c, staminate flower X 1; d, stamen X 5; e, style X 5; f, Begonia valvata 

 Smith & Schubert, branchlet X 1; g, staminate flower X 1; h, young capsule X 1; 

 i, old capsule and peduncle X 1. 



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