1963] 



BOTANY OF THE GUAYAXA HIGHLANDS PART V 



189 



Calycophyllum venezuelense Steyermark, sp. nov. 



Arbor 8-15 m alta, ramulis teretibus glabris ; stipulis caducissimis apicalibus 

 32-35 mm longis glabris marginibus scariosis; foliis petiolatis, petiolis 1.5-3 cm 

 longis glabris ; laminis coriaceis elliptico-ovatis late ovatis vel obovatis apice 

 acutis vel acutiusculis basi cuneatim vel acutate angustatis vel obtusis 18-30 cm 

 longis 6-17.5 cm latis utrinque glabris, nervis lateralibus utroque latere 11-15 

 valde adscendentibus plerumque rectis utrinque prominentibus venulis supra 

 creberrimis fere sublineolato-reticulatis ; inflorescentiis terminalibus speciosis, 

 rhachi ramulisque tomentellis 15-20 cm longis 15-20 cm latis, bracteis simplicibus 

 lanceolatis vel oblanceolatis acutis vel acuminatis vel trifidis vel tripartitis 3-9 

 mm longis 2-3 mm latis intus glabris extus glabratis vel parce puberulentibus 

 ciliolatis ; floribus sessilibus vel subsessilibus ; calycis tubo hypanthioque turbinato 

 extus sericeo-cano-tomentello 3-3.5 mm alto, calycis lobis 4 triangularibus sub- 

 orbicularibus vel late deltoideis apice rotundatis obtusis vel subacutis 1-1.5 mm 

 longis 1.5-1.75 mm latis extus puberulis; calycis lacinia foliacea pallido-viridi 

 vel albida in laminam anguste oblongo-elliptieam vel elliptico-spatulatam apice 

 rotundatam basin versus cuneatam 5.5-7 cm longam 2-3.3 cm latam utrinque 

 puberulentem dilatata, 5-7-nervatam, nervis magis densiuscule puberulentibus, 

 ungui 1-2.5 cm longo puberulenti ; corolla albida urceolato-campanulata 5-6 mm 

 longa, tubo 3-4 mm longo 4-5 mm lato extus glabro vel parce minutissime 

 puberulentibus intus supra basin barbato-hirsuto 2 mm aliter glabro, lobis sub- 

 orbicularibus rotundatis 1.5-1.75 mm longis 2.25-3 mm latis glabris; staminibus 

 4, filamentis 5.5-6 mm longis 0.5-0.75 mm latis infra medium dense hirsutulis 

 supra medium parce puberulis apicem versus glabris basin versus glabris, antheris 

 ovato-oblongis 1.5 mm longis puberulis, connectivo magis densiuscule puberulis; 

 disco carnoso late 4-lobato 0.5 mm alto 1.8 mm diam ; stylo 5-5.5 mm longo glabro, 

 stigmatibus 2 late oblongis apice rotundatis 1 mm longis 0.75 mm latis; capsulis 

 clavato-obconicis 1.5-2 cm longis extus minute hirtellis vel puberulentibus; 

 seminibus fusiformibus utrinque acutis vel acuminatis 6-10 mm longis 1.75-2 

 mm latis irregulariter eroso-pectinatis stramineis vel castaneis, testa rugoso- 

 reticulata vel submuriculata. 



VENEZUELA. Bolivar: Cerro Pauji, vicinity of km 100 south of El Dorado; 

 forested slopes ; alt. 800 m ; common ; tree 10-15 m tall ; trunk 2-4 dm diam, with 

 thin exfoliating coppery-red bark ; leaves coriaceous, dark green above ; bracts of 

 inflorescence pale greenish to white ; 6 Mar 1962, Julian A. Steyermark & 

 Leandro Aristeguieta 4 (holotype YEN, isotype NY) ; base of Cerro Pauji 

 along Quebrada 94 at km 94 south of El Dorado ; low wet woods along trail ; alt. 

 800 m; tree 10 m tall, bark coppery-red; 27 Jul 1960, Steyermark 86704 (para- 

 type NY, VEN) ; cerro tabular de El Pauji 100 km sur El Dorado ; arbol caracter- 

 istico de la zona abierta de laja de escasa vegetacion ; alt. 500-530 m; arbol 

 pequeno; 21 Mar 1956, Bernardi 2970 (paratype NY, VEN) ; alrededores km 88 

 carretera El Dorado; sitios abiertos y pedregosos ; arbol de unos 8-10 m alto; 

 corteza rojiza, muy caracteristica ; Nov 1958, Aristeguieta 3743 (paratype VEN) ; 

 summit of low pass over summit of Sierra de Lema, headwaters of Rio Chicanan ; 

 wet forest ; alt. 700 m ; tree 15 m tall, bark coppery, smooth ; 22 Aug 1961, Steyer- 

 mark 89397 (paratype VEN); La Escalera, Rio Uiri-yuk, Alto Rio Cuyuni; 

 montane woodland; alt. 200 m; medium tree, reddish exfoliating bark; floral 

 bracts white; corollas greenish-white, pink-tinged; occasional; 20 Aug 1962, 

 Bassett Magu.ire, Julian A. Steyermark, & Celia K. Maguire 46789 (paratype 

 NY, VEN). 



