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MEMOIRS OF THE NEW YORK BOTANICAL GARDEN 



[VOL. 10 



pansum 0.25 mm diam; ovarium 3-loculare 1/2-inferum glabrum apice in collum 

 0.3 mm altum circum stylum protractum. Semina pyramidata 1.1 X 0.6 mm laevia. 



Type. Leaves dark green above, pale green below, coriaceous, the veins finely 

 and deeply impressed above, hypanthium deep maroon, petals and filaments rose, 

 fruit blue, climbing in zanjones bordering rocky savanna above Upper Falls, 

 between meanders of west branch of Rio Tirica headwaters, central section, 

 Chimanta Massif, Edo. Bolivar, Venezuela, elev. 2150 m, 17 Feb 1955, J. A. 

 Steyermark & J. J. Wurdack 924 (holotype US 2342410). Paratypes. VEN- 

 EZUELA, Edo. Bolivar. Chimanta Massif: Torono-tepui, alt, 2150-2180 m, 

 Steyermark & Wurdack 645, 1051 p.p.; Apacara-tepui, alt. 2150-2200 m, Steyer- 

 mark 75909. 



L. procumbens has ovate-elliptic leaf blades with five distinctly developed 

 primary nerves (the outer pair plainly visible on the upper surface and 1-1.5 

 mm from the margins), as Avell as eglandular non-barbellate hairs throughout; 

 originally known only from Roraima, the species also occurs on Chimanta-tepui 

 {Steyermark & Wurdack 1051 p.p.), growing in the same crevasses as 

 chimantensis. Ule assigned L. procumbens to Sect. Tschudya but certainly the 

 seeds of L. chimantensis, as well as Gleason's notebook comments on his dissection 

 of the Kew sheet of Vie 8689, indicate that the two relatives belong elsewhere 

 in the genus. Both species suggest affinity with L. itatiaiae Cogn. and other 

 5-merous Brazilian species in Sect. Chaetodo n . 



Leandra maguirei Wurdack, sp. now 



Sect. Secundi florae. Ab sectionis omnibus speciebus differt conjunctione 

 ramulis glandulifero-setulosis floribus 5-meris ovario 3-loculari apice setuloso. 



Rami obtuse quadrato-suleati petiolis inflorescentiisque dense longo-setulosi 

 pilis brevioribus patentibus gianduliferis sparse vel dense -intermixtis. Petioli 

 1.5-3 mm; lamina 5-9(-ll) X 3.5-5.5(-7.5) cm ovata apice anguste acuta vel 

 gradatim breviterque acuminata basi vix (ad 4 mm) cor data rigidiuscula, supra 

 modice bullulato-setulosa pilis ca. 1 mm longis vix incurvis basi expansis, subtus 

 modice longo-setulosa et leviter foveolata, 7-nervata inconspicue incurvo-dentic- 

 ulata. Panicula 7-12 cm longa oblongo-pyramidata ramis usque ad 4 cm longis; 

 flores 5-meri sessiles vel breviter (ad 1 mm) pedicellati; bracteolae ca. 1 mm 

 longae spathulatae ciliolatae ad pedicellorum basim insertae persistentes. Hy- 

 panthium (ad torum) 3 mm longum dense brevisetosum pilis vix adscendentibus 

 pilis brevioribus gianduliferis occultis sparse vel modice intermixtis; calycis 

 tubus 0.1-0.2 mm altus, lobis interioribus 0.9-1 mm longis oblongo-orbicularibus 

 ad margines vix ciliolatis, dentibus exterioribus callosis setulosis 0.7-0.9 mm 

 eminentibus. Petala 2.5 X 0.8 mm apice acuta et mucronulata. Stamina iso- 

 morphica; filamenta 3-3.5 mm glabra; antherarum thecae 1.7-1.9 mm longae 

 oblongae minute uniporosae, connectivo basi non prolongato sed dorsaliter ap- 

 pendice 0.2-0.3 mm longa descendenti truncata vel rotundata armato. Stylus 

 5 X 0.4 mm; stigma punctiforme; ovarium 3-loculare 2/3-inferum apice dense 

 strigulosum pilis paucis gianduliferis intermixtis in collum lobulatum 0.6 mm 

 altum circum stylum protractum. Semina 0.7 X 0.4 mm ovOidea minutissime 

 densissimeque tuberculata. 



Type. Shrub 1-1.5 m, stems deep red, inflorescence pale pink, petals white, 

 filaments salmon, anthers yellow, occasional along escarpment at east head of 

 Canon Grande, Cerro de la Neblina, Terr. Amazonas, Venezuela, alt. 1900-2000 m, 

 17 Dec 1957, Bassett Maguire, John J. Wurdack, & Celia K. Maguire 42437 



