1953] 



BOTANY OF THE GUAYANA HIGHLAND 



151 



Stenopadus cardonae is most closely to be associated with S. talaumifolius 

 Blake of Cerro Duida, which has obovate leaves chiefly about 8 cm. long and 

 4-5 cm. broad, densely strigose branchlets, and much narrower and smaller heads. 

 S. cardonae is sharply distinctive because of the Z 20 cm. long peduncle-like 

 terminal axis which tends to become naked by the early loss of the upper reduced 

 leaves. 



Stenopadus kunhardtii Maguire, sp. nov. Eustenopadus Blake. 



Arbor parva vel mediocris; ramis crassis glabris densis axillaribus cristis 

 fuscorum pilorum exceptis; laminis coriaceis subobovatis vel late lanceola- 

 tis (10) 12-25 cm. longis 6-8 cm. latis; costa prominenti, nervis lateralibus 

 8-10 jugis prominulis in nervo collectivo 1-2 mm. ab margine remoto, mar- 

 gine aliquantum revoluto, apice rotundato, basi anguste cuneata vel acuminata; 

 capitulo solitario sessili majusculo stipitato 60-70-flori homogamo; involucro 

 crateriformi 6-7 cm. longo 4-6 cm. lato, stipite 1-2 cm. longo, phyllaribus (10) 

 12-16 valde gradatis crassulis anguste scario-marginatis minute ciliolatis, 

 inferioribus 6-10 mm. longis ovatis aliquantum acutis, intermediis ovatis vel 

 ovato-oblongis aliquantum obtusis 15-30 mm. longis, superioribus oblongis ca. 

 40 mm. longis vel minoribus crassulis aliquantum induratis latius scario-mar- 

 ginatis; receptaculo aliquantum concavo vel piano ca. 2 cm. diametro glabro pale- 

 ilifero, paleis numerosis deciduis 35-40 mm. longis ca. 1.0-1.5 mm, latis, apice 

 latiori minute ciliolato univervis; corollis ca. 40 mm. longis, tubo ca. 24-27 mm. 

 longo, limbo 5-6 mm. longo expanso quinquelobato, lobis 12-15 mm. longis lineari- 

 bus acutis trinervis, basi 2 mm. lata; filamentis ca. 15 mm. longis, antheris con- 

 natis ca. 15 mm. longis, appendicum apicibus ca. 3 mm. longis acutis, appendici- 

 bus caudatis antherarum adjacentium connatis ca. 2.5 mm. longis; pappo ca. 3 cm. 

 longo, sordido 4-5-seriato, setis minute barbellatis omnino patentibus; achaeniis 

 8-10 mm. longis 2.0-2.5 mm. latis 5-angulatis 10-costatis prismaticis glabris 

 castaneis. 



1. Stenopadus kunhardtii var. kunhardtii. 



Foliis 10-15 cm. longis; capitulo 5-6 cm. longo, stipite capituli ca. 1 cm. lon- 

 go cum phyllaribus 3-4-seriatis. 



TYPE: spreading tree 12 m. high, with branched trunk 25 cm. diam., occa- 

 sional in thickets of terrace base, Campo Grande, Cerro Sipapo, 1500 m. alt., 

 January 12, 1949, Bassett Maguire & Louis Politi 28304; New York Botanical 

 Garden. Paratypes: tree 30 cm. diam., corollas lavender, anthers greenish, oc- 

 casional, Campo Grande, Maguire & Politi 28010; small tree, frequent, Campo 

 Grande, Maguire & Politi 27896. 



2. Stenopadus kunhardtii var. grandifolia Maguire, var. nov. 



Foliis 15-30 cm. longis; capitulo ca. 7 cm. longo, stipite ca. 2 cm. longo, 

 cum phyllaribus 8-10-seriatis. 



TYPE: tree 8 m. high, on granite, occasional in thickets bordering water- 

 course above Intermediate Camp, 500 m. alt., Cerro Sipapo, February 2, 1949, 

 Bassett Maguire & Louis Politi 28704; New York Botanical Garden. Paratype: 

 small tree 5 m. high, infrequent in opening along creek above Intermediate Camp, 

 500 m. alt., Nov. 27, 1948, Cerro Sipapo, Maguire & Politi 27475. 



The var. grandifolia might possibly represent a distinct species. At the 

 present time it seems preferable to interpret it as merely a low-altitude variant. 



Stenopadus huachamacari Maguire, sp. nov. Eustenopadus Blake. 



Arbor parva; ramis glabris crassis cristis parvis axillaribus fuscorum 

 pilorum exceptis, internodiis 2-10 mm. longis, foliis alternis approximatis, 



