96 



MEMOIRS OF THE NEW YORK BOTANICAL GARDEN 



[vol. 10 



oblanceolata basi attenuata apiee hebetiacuta et in seta 0.5-1 mm longa terminata, 

 supra modice laxeque strigulosa, subtus dense strigulosa, marginibus setoso- 

 ciliatis ciliis ad 1 mm longis, uninervia i.s. flavida tenuis sed rigidiuscula supra 

 et subtus dense impresso-punctata. Flores breviter (0.5-1.5 mm) pedicellati ; 

 lwpanthium ad torum 3 mm longum modice granuloso-glandulosum breviter 

 subsparseque eglanduloso-puberulum setis interealycinis paulo grandioribus ; 

 calycis tubus 0.3 mm longus, lobis 3 X 1 mm anguste triangularibus extus sparse 

 puberulis apice anguste acutis et in seta 1-1.5 mm longa terminatis. Petala 

 10-10.5 X 4.5 mm, anguste obovata obtusa minute apiculata in seta brevi termi- 

 nata. Stamina maiora : filamenta 5 mm longa; antherae 2 mm longae; connecti- 

 vum sub anthera ad insertionem filament] 3.2 mm longum, in appendicem 1.7 

 X 0.6 mm productum. Stamina minora: filamenta 4.5 mm longa; antherae 1.7 

 mm longae; connect] vum sub anthera ad insertionem filament] 1.4 mm longum, 

 in appendicem hebetem 0.4 X 0.3 mm productum. Ovarium stylusque ut in 

 genero. 



Type: diffuse shrub, flowers pink, frequent on summit of Cerro Guanay. 

 Cano Guaviarito, Rio Manapiare, Rio Ventuari, Terr. Amazonas, Venezuela, 

 elev. 1800 m, Feb 2, 1951, Basseit Maguire, Kathleen 7). Phelps, Charles B. 

 Hitchcock & Gerald Budowski 31727 (NY). 



In Cogniaux' arrangement of Microlicia, M. guanayana would key to the 

 pubescent group of species with punctate one-nerved leaves, centering around 

 M. cuneata Naud., M. acuminata Cogn., M. hirsutissima Xaud., M. regeliana 

 Cogn., and M. albicla Pilger. The relatively much narrower bluntly acute leaves 

 distinguish the Guanay species from these Brazilian congeners. Actually, M. 

 guanayana would probably be better regarded as a pubescent near relative of 

 M. benthamiana. 



Rhynchanthera virgata Wurdack sp. nov. 



Sect. Isostemones. R. hookeri Naud., R. villosissimae Cogn.. R. paludicolae 

 (Donn. Sm.) Gl. affinis sed habitu dissimili et pubescentia hypanthi breviore. 



Simplicicaulis, caule longe (2-5 mm) robuste densiusculeque glanduloso- 

 setoso. Petiolus 5-12 mm, pubescentia caulis eadem ; lamina ad 5.5 X 3 cm 

 (apicem versus gradatim minor), ovata apice acuta basi rotundata bis subcordata 

 7-nervia (nervis duobus exterioribus paulo debilibus) supra et subtus laxe modi- 

 ceque glanduloso-strigosa (setis 1/mm 2 . ad 2 mm longis, glandulis aliquantum 

 caducis) marginibus setoso-ciliatis denticulatis. Inflorescentia anguste thyrsoideo- 

 paniculata, ramis adscendentibus brevibus ad 3 (-5) cm longis. Hypanthium 

 2.5-3 X 2-2.5 mm, inconspicue glanduloso-puberulentum pilis debilibus 7- 

 10/mm 2 , ad 0.15 mm longis; sepala vix (0.2 mm) coalita 2.7-2.9 X 0.8-1 mm 

 faucibus glabris marginibus cum setis 2-4 glandulosis 1.5-2.5 mm longis armatis. 

 Petala obovato-rhomboidea vel elliptica 13-13.5 X 7-7.5 mm apice acuta seta 

 glandulosa ornata marginibus apicem versus glanduloso-ciliolatis. Stamina fer- 

 tilia : rostrum 0.9 mm longum circum porum dilatatum ; anthera propria 4.2 

 mm longa, connectivo ad basim per 2.6 mm producto ab articulatione antice non 

 producto; filamentum 4.3 mm Tongus. Staminodia 2.5 X 0.2 mm. Ovarium tri- 

 loculare apice modice glanduloso-puberulum ; stylus 12 X 0.4 mm, basim versus 

 sparsissime glanduloso-puberulus ; stigma truncatum. 



Type: unbranched annual 1.5-5 dm tall, occasional in weedy grassy intervale, 

 headquarters Mica, Rio Cabosobral, elev. 800 m, Serra Tepequem, Terr, do Rio 

 Branco, Brazil, Nov 19. 1954, Bassett Maguire d' Celia K. Maguire 40000 (NY). 



