362 



MEMOIRS OF THE NEW YORK BOTANICAL GARDEN \Vol 9, No. 3 



nata, 4-8.5 cm looga, 2-3 cm lata, tomentella, rugosula, glandulis patelliformibus 

 immersis notata, costa valvarum mediana haud vel aliquantum elevata. Semina ad 

 1.5 cm longa, ad 2.7 cm lata, embryone brunnea vel purpurascenti, alis membra- 

 naceis subhyalinis pallide brunneis necnon saturatius maculatis. 



TYPE: VENEZUELA: Territorio de Amazonas: Cerro Sipapo (Paraque), fre- 

 quent in savanna, Camp Savanna, 1500 m, fl. and fr. Dec. 15th 1948, B. Maguire 

 & L. Politi 27717 (Kew). 



VENEZUELA: Amazonas: Cerro Sipapo, 'on slopes, 165 m, fl .Dec. 20th 1948, 

 Maguire & Politi 27799 (Kew); ibid., 1500 m, fr. Jan. 19th 1949, Maguire & Politi 28450 

 (NY); ibid., Lower Cano Negro, 1400 m, fl. Dec. 25th 1848, Maguire & Politi 27898 (NY); 

 Cerro Yapacana, Rio Orinoco, frequent in cumbre, 1200 m, fl. and fr. Jan. 3rd 1951, B. 

 Maguire, R. S. Cowan & J. J. Wurdack 30662 (Kew); Rio Guainia, infrequent in sabana El 

 Venado, left bank of Cano Pimichin above Pimichln, 140 m, fl. April 14th 1953, B. 

 Maguire & J. J. Wurdack 35577 (Kew). 



COLOMBIA: Rio Atabapo: frequent in savanna 1 km west of Cacagual, fl. and fr. Nov. 

 19th 1953, B. Maguire, J. J. Wurdack & G. S. Bunting 36272 (Kew). 



Distictella monophylla var. laevis Sandwith, var. nov. 



A planta typica (var. monophylla) ramulis glabratis, foliis utrinque laevibus 

 haud reticulatis subtus glabris crebre punctato-lepidotis differt. 



TYPE: VENEZUELA: Territorio de Amazonas: Cerro Yapacana, Rio Orinoco, 

 100-125 m, fl. Jan. 1951, Maguire, Cowan & Wurdack 30788 (NY). 



Also same data, same collectors 30569 (NY). 



This is a very interesting and remarkable species, outstanding in the genus on 

 account of its habit and simple leaves. It will be noticed that the specimens with 

 smooth and glabrous foliage, which I have ventured to treat as a variety laevis, 

 came from a locality at a low altitude below the mountains. Nevertheless, the 

 typical var. monophylla, with leaves strongly reticulate and hairy beneath, can 

 also occur at low altitudes, as is proved by Maguire & Wurdack 35577. I have seen 

 only two, quite poor, specimens of var. laevis, and further collections of it may 

 persuade me to revise its status. 



Distictella obovata Sandwith sp. nov. 



D. cuneifoliae (DC.) Sandw. atque verosimiliter D. monophyllae Sandw. affinis, 

 ab ilia foliolis subtus tomentellis nervis lateralibus paucioribus propius ad margi- 

 nem anastomosantibus, ad hac habitu scandente foliis bifoliolatis nonnunquam 

 cirrhiferis foliolis plus minusve obovatis venulis subtus minus crasse reticulatis 

 differt. 



Frutex scandens, ramulis teretibus subadpresse pubescentibus; internodia 

 3-6 cm longa. Folia bifoliolata, nonnunquam cirrho apice trifurcato terminata; 

 petiolus 0.8-1.5 cm longus, pubescens; petioluli 0.6-1.2 cm longi, supra profunde 

 canaliculati, pubescentes; foliola obovata, obovato-elliptica vel oblanceolata, 

 apice obtusa rotundata vel obtuse acuta, basi attenuata acute cuneata, 2.8-9 cm 

 longa, 1.5-4 cm lata, rigide coriacea marginibus revolutis, supra pilis minutis 

 sparsis regulariter pubescentia nitida punctato-lepidota rugosula nonnunquam 

 subbullata costa nervisque planis vel canaliculato-immersis venulis haud cernen- 

 dis, subtus glaucescentia tomentella costa nervisque prominentibus venulis 

 prominulis intricate reticulatis sed neque valde crassis neque super tomento 

 pilorum elevatis, basi trinervia praeterea nervis primariis utroque costae latere 

 circiter 4 sursum arcuatis atque prope marginem ipsum anastomosantibus. Inflo- 

 rescentia axillaris atque terminalis, racemosa, ad 15 cm longa, laxiflora, ubique 

 pubescens; bracteae bracteolaeque deciduae, bracteolae vix 1 mm longae; pedi- 



