310 



MEMOIRS OF THE NEW YORK BOTANICAL GARDEN 



\Vol. 9, No. 3 



25. Navia mi ma L. B. Smith, sp. nov. Fig. 49. 



Humilis, habitum N. brachyphyllae valde imitans; caule simplici, erecto, ro- 

 busto 5 4-10 cm alto, foliis vetustis obtecto; foliis vivis apice caulis rosulatis, 

 multis, 9-13 cm longis, vaginis brevibus, late ovatis, aterrime castaneis, gla- 

 bris, laminis linearibus, abrupte acutis vel obtusis, 5-7 mm latis, crasse coria- 

 ceis, dense minuteque serrulatis 9 supra glabris, subtus lepidibus cinereis ad- 

 pressis omnino obtectis; inflorescentia sessili, pauciflora; bracteis exterioribus 

 omnino foliaceis sed reductis; bracteis florigeris ellipticis, obtusis, quam sepalis 

 paulo brevioribus, castaneis, apice incrassatis et dense cinereo-lepidotis; pedi- 

 cellis brevibus; sepalis oblongis, obtusis, 15 mm longis, ad 6.5 mm connatis, 

 tenuibus, castaneis, posterioribus carinatis; petalis staminibusque valde imper- 

 fecte cognitis; ovario supero. 



TYPE: bracts white, leaves coriaceous, on exposed rocks and dry cliff ledges, 

 frequent, Campo Grande, 1500 m alt., Cerro Sipapo, Terr. Amazonas, Venezuela, 

 Dec. 11, 1948, B. Maguire & L. Politi 27590. 



The species is also represented by number 28680 from the same region, East Basin 

 summits, frequent at 2000 m alt. 



26. Navia pungens L. B. Smith, sp. nov. Fig. 50. 



Simplex vel pulvinata; caule 1 cm diametro; foliis apicalibus solum cognitis, 

 vaginis late ovatis, apice serrulatis et ex sicco brunneo-rubentibus, alibi integris 

 pallidisque, laminis lineari-lanceolatis vel linearibus, acuminatis, basi paulo 

 attenuatis albisque, 5-10 cm longis, 8-10 mm latis, angustissime cartilagineo- 

 marginatis, subtus dense adpresseque cinereo-lepidotis, mox omnino glabris, laxe 

 serrulatis; inflorescentia nidulante, subglobosa, 10-15 mm diametro; bracteis ex- 

 terioribus foliaceis sed valde reductis; bracteis florigeris ellipticis, acuminatis, 

 sepala subaequantibus, brunneis, paulo lepidotis, basi membranaceis, apice valde 

 incrassatis pungentibusque; floribus subsessilibus; sepalis cochleari-imbricatis, 

 oblongis, acutis, 11-14 mm longis, omnibus alte connatis, posterioribus anguste 

 alato-carinatis, apice inflexis; petalis flavis; ovario supero; capsula ovoidea, 

 acuta, 7 mm longa. 



TYPE: cushion-former on rock face, leaf-bases white, common in deciduous 

 woodland between Campo Verada and Campo M. Perez, Cano Verada at 900-1100 

 m alt., Cerro Guanay, Cano Guaviarito, Rio Manapiare, Rio Ventuari, Amazonas, 

 Venezuela, January 30, 195 l s B. Maguire, K. D. Phelps, C. B. Hitchcock & G. 

 Budowski 31652. 



VENEZUELA: Amazonas: solitary or forming cushions on rocks, common on summit at 

 1800 m alt., Cerro Guanay, Cano Guaviarito, Rio Manapiare, Rio Ventuari, February 4, 

 1951* B. Maguire, K. D. Phelps, C. B. Hitchcock & G. Budowski 31753 % Common on 

 rocks along left fork of Cano Yutaje at 1250 m alt., Cerro Yutaje, Serrania Yutaje, Rio 

 Manapiare, February 12, 1953, B, & G K. Maguire 35215. 



27. Navia ocellata L. B. Smith, sp. nov. Fig. 51. 



Humilis; caule simplici, erecto vel adscendente, ultra 17 cm longo, foliis ve- 

 tustis longe persistentibus densissime vestito; foliis vivis plurimis, apice caulis 

 rosulatis, patentibus, foliis interioribus cum bracteis basi albis et aream colo- 

 ratam circa inflorescentiam formantibus, vaginis late ovatis, parvis, atris, lami- 

 nis linearibus, acuminatis, 12 cm longis, 1-2 mm latis, basi haud angustatis, 

 laxe minuteque serrulatis, marginibus dissite lepidotis, mox glabris; inflores- 

 centia sessili, ovoidea, 13 mm diametro, glabra; bracteis exterioribus e foliis 

 gradatim reductis; bracteis florigeris ovatis, apiculatis, quam sepalis paulo bre- 

 vioribus, tenuibus; pedicellis brevibus, latis; sepalis oblongis, acutis, 10 mm 

 longis, alte connatis, tenuibus, glabris; petalis aureis; staminibus inclusis; 

 ovario supero. 



