280 



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



laminis longe acuminatis, margine albo-piloso; capitulis hemisphaericis albis 

 firmis; bracteolis involucri firmis ovatis nigris longe acuminatis adpresso-pilosis 



ciliolatis. 



Perennial herb; stems elongate to 12 cm, densely leafy, simple, erect; leaves 

 subcoriaceous, firm, rather uniformly bright-green on both surfaces, darker in age, 

 at first erect, later spreading, finally reflexed, densely overlapping and com- 

 pletely hiding the stem, 2-4 cm long, about 5 mm wide at the middle, 7 mm wide 

 at the base, subacute at the apex, entire, scattered-pilose on both surfaces with 

 white hairs of various lengths, less so or glabrescent and shiny in age, longitu- 

 dinally parallel-veined, the 10-12 veins subprominulous and rather conspicuous 

 beneath and usually more or less apDressed-pilose on younger leaves; peduncles 

 3 or 4 per plant, terminal, erect, 18-30 cm long, stramineous, 4-costate, minutely 

 pilosulous; sheaths closely appressed, about 6 cm long, many-striate, minutely 

 pilosulous with whitish hairs, obliquely split at the apex, the blade about 8 mm 

 long, erect, appressed, long-acuminate, white-pilosulous on the margins; heads 

 hemispheric, 8-9 mm wide, white, firm, blooming from the periphery toward the 

 center; involucral bractlets firm, stiff, ovate, black, about 2 mm long, 1.5 mm 

 wide, long-acuminate at the apex, pilose with short appressed hairs on the back, 

 ciliolate-margined; receptacle pilose; receptacular bractlets oblanceolate, dark- 

 brown toward the apex, about 1.5 mm long, 0.5 mm wide, acute at the apex, 

 densely white-barbate toward and at the apex on the back; staminate florets pedi- 

 cellate; sepals 3, separate, oblanceolate, brown or blackish toward the apex, 

 about 1.5 mm long, 0.5 mm wide, acute or short-acuminate at the apex, densely 

 v/hite-barbate toward and at the apex; petals 3, connate into a stramineous 'in- 

 fundibular tube 0.5-1.5 mm long, glabrous, ampliate at the apex, the free portions 

 very short, rounded at the apex; stamens 3, exserted; filaments white, about 0.5 

 mm long, glabrous; anthers brownish, oblong, about 0.35 mm long; pistillate flo- 

 rets not seen. 



TYPE: Bassett Maguire 33383a, in wet areas on Mesa Ridge, alt. 5800-6000 

 ft., Ilu-tepui, Gran Sabana, Venezuela, March 11, 1952, New York Botanical Gar- 

 den. The species is said to be frequent at the type locality. Although many 

 scores of florets were examined, no pistillate ones were found. It may be, there- 

 fore, that the species is dioecious. The central florets had very short corolla- 

 tubes and the peripheral ones elongated corolla-tubes. This appears to be cor- 

 related with the degree of maturity of the anthers, so it would appear that the 

 corolla-tube lengthens as the flowers mature. The remaining parts of the floret 

 were uniform throughout the head. 

 Paepalanthus pendulus Moldenke, sp. nov. 



Herba perennis magna ramosa pendula; caulibus usque ad 2 m longis dense 

 foliosis; foliis subcoriaceis arete imbricatis lanceolatis patentibus obtusiusculis 

 utrinque glabris nitidisque obscure multistriatis; pedunculis numerosis brunneis 

 profunde 4-sulcatis 4-costatisque glabris; vaginis brunneis glabris nitidis ad- 

 pressis, laminis lanceolatis acutis interdum parce ciliolatis; capitulis hemi- 

 sphaericis griseis; bracteis involucri pallide stramineis firmis ovato-triangulari- 

 bus acutis vel breviter acuminatis glabris nitidis; receptaculo piloso. 



Large branched perennial herb, pendulous from cliff-faces; stems to 2 m long, 

 densely leafy; leaves subc6riaceous, closely overlapping at the base, lanceo- 

 late, divergent-spreading, 7-9 cm long, 7-10 mm wide at the middle, about 15 mm 

 wide at the base, rather blunt at the apex, entire, glabrous and shiny on both sur- 

 faces, obscurely many-striate; peduncles numerous, about- 15 per stem, stout, 

 brownish, 18-26 cm long, rather deeply 4-sulcate and 4-costate, glabrous; sheath 

 brownish, 7-7.5 cm long, glabrous and shiny, rather closely appressed, the blade 

 lanceolate, erect, appressed, 5-8 mm long, acute at the apex, sometimes slightly J 



