436 



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



fulvo-lanulosis, laminis valde patentibus coriaceis supra atroviridibus glabris 

 obscure vel valde reticulato-venosis subtus densissime fulvo-lanatis oblongo- 

 obovatis vel ovato-oblongis rotundatis vel subobtusis apiculatis basi subcuneatis 

 vel rotundatis, 2-9 cm longis 1-4.5 cm latis, caulium sterilium foliis majoribus 

 ad 12 cm longis ad 5.5 cm latis, costa media supra subsulcata, nervis lateralibus 

 primariis utroque latere 4-12, supra obscuris subtus nullis; capitulorum glomerulis 

 axillaribus dense confertis numerosis inter folia per caulem; capitulis congestis 

 sessilibus unifloris anguste subhemisphaericis vel late fusiformibus, 1.5-2 cm 

 longis 1-2 cm latis, cum bracteis subulatis vel lineari-lanceolatis 11-23 mm 

 longis 1-2 mm latis extus densissime ferrugineo-lanulosis intus glabris sub- 

 tendentibus; involucro elliptico-ovato vel lanceolato, 2 cm longo 5-6 mm lato, 

 4-5-seriato, phyllariis 7-9-(10), extimis ovatis vel ovato-lanceolatis abrupte 

 acuminatis, 7-8-(10) mm longis 4 mm latis, extus rufo-pubescentibus vestioribus 

 glabris, medianis late lanceolatis abrupte acutis, ca. 10 mm longis 4 mm latis, 

 parte superiore tertia rufo-pubescentibus vestustioribus glabris, intimis oblanceo- 

 latis vel lanceolatis subacutis vel subobtusis, 10-12 mm longis 2-3 mm latis, 

 parte superiore quarta rufo-pubescentibus vetustioribus glabris; corollis rosaceo- 

 rubris regularibus (actinomorphicis), 10-15 mm longis, cvlindricis profunde 5- 

 lobis, tubo 6-7 mm longo 1.5-2.5 mm diam. extus puberulo, lobis late lanceolatis 

 acutis, 6-7 mm longis 1.25 mm latis, glabris; antheris 5.5-7 mm longis, basi 

 caudato-sagittatis, appendicibus terminalibus triangulari-lanceolatis subacumi- 

 natis glabris, 1 mm longis, caudicibus lanceolatis vel lineari-oblongis subobtusis, 

 1.5-2.5 mm longis, hispidulis adjacentibus per 0.75-1 mm connatis; styli ramulis 

 subtruncatis apice minute 3-lobatis, 1.5 mm longis, glabris; achaeniis subel- 

 liptico-oblongis castaneis, 5 mm longis 1.0-1.5 mm latis, 10-costatis glabris; 

 pappo stramineo, 6-8 mm longo, setis scabridulis. 



TYPE: summit, at edge of escarpment in and among zanjones, Torono-tepui, 

 Chimanta Massif, Bolivar, Venezuela, 2165-2180 m alt., February 9, 1955, Julian 

 A. Steyermark & John J. Witrdack 675 (holotype F, isotype NY). Paratypes: east- 

 central portion of summit of Apacara-tepui', Chimanta Massif, 2450-2500 m alt., 

 June 21-22, 1953, Steyermark 75902; rocky slopes around zanjones between east 

 and west branches of Rib Tirica, Central Section, Chimanta Massif, 2185 m alt., 

 February 12, 1955, Steyermark & Wurdack 753 (putative parent plant of x Q. 

 grandifolia). 



5. x Quelchia grandifolia Maguire, Steyermark, & Wurdack, hybrida nov. 



Frutex 2-3-metralis, caule erecto ligneo simplici solitario infra denudato 

 aliter conferte folioso, parte media supraque densissime rufo-lanulosa, 1-1.2 cm 

 diam.;*foliis alternis densissime confertis patentibus vel adscendentibus breviter 

 petiolatis, petiolis incrassatis, 0.5-1 cm longis, densissime rufo-lanulosis, 

 laminis coriaceis late oblongis vel obovato-oblongis rotundatis basi obtusis 

 supra atroviridibus lucidis subtus argenteo-viridibus vel ferrugineis supra glabris 

 praeter costam mediam basi tomentosam subtus tomentosis novellis dense velu- 

 tinis, 7-10.5 cm longis 3-6 cm latis, utrinque reticulato-venosis nervis laterali- 

 bus utroque latere 7-8; capitulorum glomerulis subsessilibus plerumque in axillis 

 foliorum superiorum; capitulis congestis sessilibus unifloris subhemisphaericis 

 cum bracteis foliosis extimis ovatis 1.5 cm longis 1 cm latis subtus brunneo- 

 velutinis, intimis subulatis vel lineari-lanceolatis extus ferrugineo-tomentosis 

 praeditis; involucro oblongo-lanceolato, 12-13 mm longo 5-6 mm lato, phyllariis 

 9 chartaceis extus supra medium ferrugineo-lanulosis et extimis ciliolatis aliter 

 glabris, extimis ovatis vel ovato-lanceolatis acutis vel acuminatis 6.5-7 mm 

 longis, medianis intimisque ovato-lanceolatis vel lanceolatis subacutis vel 



