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



vix latioribus, brunneis, subglabris, laminis linearibus, acuminatis, pungentibus, 

 10 mm latis, serrulatis, supra glabris, subtus lepidibus cinereis adpressis omnino 

 obtectis; inflorescentia sessili, pauciflora; bracteis exterioribus omnino foliaceis 

 sed reductis; bracteis florigeris ellipticis, obtusis, sepala subaequantibus, inte- 

 gris, apice lepidotis; floribus subsessilibus; sepalis liberis, anguste spathulatis, 

 late obtusis, 8 mm longis, 2 mm latis, posterioribus angustissime alato-carinatis, 

 incurvatis; petalis staminibusque non visis; ovario supero; capsulis quam sepalis 

 brevioribus; seminibus nudis. 



TYPE: on banks and rocks, flowers white, common, Cerro Marahuaca, Ama- 

 zonas, Venezuela, April 23, 1949 9 B. Maguire & B. Maguire, Jr, 29154, 



19. Navia octopoides L. 8. Smith, sp. nov. Fig. 43. 



Humilis; foliis multis, ad 21 cm longis. vaginis brevibus, vix distinctis, lami- 

 nis linearibus, acuminatis, 10 mm latis, subdense serrulatis, glabris, linea me- 

 diana lata pallida pictis; inflorescentia sessili, subgrobosa, multiflora, 3 cm dia- 

 metro; bracteis exterioribus omnino foliaceis sed reductis; bracteis florigeris 

 panduratis, late rotundatis apiculatisque, sepala subaequantibus, tenuibus, nerva- 

 tis, apice incrassatis lepidotis serrulatisque; pedicellis brevibus latisque; sepa- 

 lis liberis, obovatis, late subacutis, incurvatis, 7 mm longis, 4 mm latis, poste- 

 rioribus late alato-carinatis, carina lineari, acuminata; petalis staminibusque 

 ignotis; ovario supero. 



TYPE: terrestrial, flowers white, frequent in mixed forest near base of north 

 slope, Cerro Duida, 3 miles south of Culebra, Amazonas, Venezuela, April 24, 

 1949, B. Maguire & B. Maguire, Jr. 29151. 



20. Navia latifolia L. B. Smith, sp. nov. Fig. 44. 



Humilis, habitum N. cretaceae imitans; foliis multis, 16 cm longis, vaginis 

 parvis, brunneis, glabris, laminis oblongis, acutis vel acuminatis, 20 mm latis, 

 dense serrulatis, supra glabris, subtus pulvere cretaceo niveo dense obtectis; in- 

 florescentia sessili, hemisphaerica, 4 cm diametro; bracteis exterioribus foliaceis 

 sed reductis; bracteis florigeris panduratis, late rotundatis apiculatisque, sepala 

 subaequantibus, valde nervatis, apice serrulatis et lepidotis; pedicellis brevibus, 

 latis; sepalis liberis, obovatis, 10 mm longis, valde nervatis, apice dissite lepi- 

 dotis, posterioribus late alato-carinatis, incurvatis; petalis albis, laminis magnis; 

 staminibus inclusis; ovario supero. 



TYPE: leaves densely farinose below, flowers white, occasional in spray of 

 upper falls, Cano Culebra at 1300 m alt., Cerro Duida, Rio Cunucunuma, Ama- 

 zonas, Venezuela, November 21, 1950, B. Maguire, R. S. Cowan & /. /. Wurdack 

 29641. 



21. Navia cretacea L. B. Smith, sp. nov. Fig. 45. 



Humilis; foliis multis, ca. 13 cm longis, vaginis brevibus, late ovatis, brun- 

 neis, laminis linearibus, acuminatis, 9-13 mm latis, subdense serrulatis, fere vel 

 omnino concoloribus, supra glabris, subtus pulvere cretaceo niveo dense obtectis; 

 inflorescentia sessili, hemisphaerica, 25 mm diametro; bracteis exterioribus folia- 

 ceis sed reductis; bracteis florigeris late oblongis, acutis, sepala subaequanti- 

 bus, integris, laevibus, glabris; pedicellis brevibus, latis; sepalis liberis, obo- 

 vatis, 12 mm longis, laevibus, glabris, posterioribus carinatls, incurvatis; petalis 

 albis, laminis magnis; staminibus inclusis; ovario supero. 



TYPE: flowers white, wet places on cliffs, diagonal ledge up south escarpment 

 at 1400 m alt., Cerro Huachamacari, Rio Cunucunuma, Amazonas, Venezuela, 

 December 5, 1950, B. Maguire, R. S. Cowan & J. J. Wurdack 29882. 



The species is also represented by number 30176 from the same mountain, flowers 

 white, frequent on rocks, Right Fork Cano de Dios at 1800 m alt. 



