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



altis 5-6 mm diametro; pedicellis pubescentibus brevibus, 1-5 mm longis. 

 Involucri campanulati squamis 2-seriatis subaequalibus lineari-lanceolatis 

 acutis, 4.5-5.2 mm longis 5 dorso puberulis. Receptaculo leviter convexo. Corol- 

 lis albis, 3.2-3.8 mm longis, glabris. Achaeniis 2 mm longis puberulis vel gla- 

 bris cum gladulis sessilibus. Pappi setis corollae subaequantibus. 



TYPE: locally frequent at margin of morichal 1-4 km above Salto de Humito, 

 Rio Villacoa (Rio Auyacoa) 25-30 km from mouth., elev. 130-140 m, Edo. Boli- 

 var, Venezuela, Jan. 7, 1956, John J. Wurdack & J. V, Monacbino 41157 (NY). 



This species is closely related to E. ballotaefolium H. B. K. In E. ballotae- 

 folium the flowers are violet with pubescent non-glandular achenes, whereas the 

 new species has larger leaves and white flowers with glabrescent achenes 

 covered with sessile glands. 



Mikania neblinensis Aristeguieta, sp. nov. 



Frutex volubilis, caulibus teretibus dense ferrugineo-sericeis. Foliis op- 

 positis petiolatis ovatis apice acutis basi rotundatis, 6-7 cm longis, 3.5-4.5 cm 

 latis, supra scabris subtus dense sericeo-ferrugineis, obscure denticulatis 

 revolutis subcoriaceis penniveniis; petiolo ferrugineo-sericeo s 1-1.5 cm longo. 

 Paniculis terminalibus. Capitulis ca. 1 cm altis; pedicellis 2-4 mm longis. 

 Bracteis oblongo-lanceolatis 5 6-6.5 mm longis, apice obtusis vel rotundatis 

 dorso dense pubescentibus; bracteolis oblongo-lanceolatis, 3.5 mm longis, 

 pubescentibus. Corollis 6.5 mm longis, limbo hispidis aliter glabris; tubo proprio 

 2.5 mm longo; dentibus limbi 1.2 mm longis. Achaeniis 4-4.5 mm longis, sparse 

 puberulis. Pappi setis 6.5-7 mm longis. 



TYPE: vine 1-2 m long in low shrubs, infrequent along west escarpment 

 8 km north of cumbre camp, 1850-1900 m elev., Cerro de la Neblina, Territorio 

 Aroazonas, Venezuela, Jan. 10, 1954, Bassett Maguire, John /. Wurdack, & G. S. 

 Bunting 37191 (NY). 



M. neblinensis is related with M. pannosa Baker from which it differs by its 

 sericeo-pilose indument covering the young branches and lower leaf surfaces, 

 leaves rounded at the base, and a shorter involucre. M. pannosa has long-lanugi- 

 nose indument and leaves cordate at the base. 



Baccharis brachylaenoides DC. var. ligustrina (DC.) Maguire & Wurdack, stat. 

 nov. 



B. ligustrina DC. Prodr. 5: 421. 1836. 



B. vitis'idaea Oliver. Trans. Linn. Soc. Bot. II, 2: 277. 1887. 



B. roraimae Schomb. Fauna & Fl. Guy. 1078. 1848. Nomen nudum. 



B. ptariensis Steyermark, Fieldiana Bot. 28: 624. 1953. 



DeCandolle described simultaneously B. brachylaenoides, B. venulosa, and 

 B. ligustrina. Baker (in Mart. Fl. Bras. 6 3 I: 82. 1884) synonomized B. venulosa 

 under B. brachylaenoides, although he apparently did not see the Haenke speci- 

 men upon which B. venulosa was based; the photograph of the type material 

 (F8178) indicates that Baker was correct, as do subsequent Peruvian collections 

 (Killip & Smith 25704, Spruce 4333). Subsequent authors of varieties of B. 

 venulosa (Hieronymus, Cuatrecases, Steyermark) without explanation did not 

 follow Baker's interpretation; isotypes of B. venulosa var. cuspidibracteata 

 Steyermark and B. venulosa var. oblanceolata Hieron. have been examined by us 

 and are certainly conspecific with B. brachylaenoides; whether they are suffi- 

 ciently distinct to be varieties is not germane to the present discussion. Typical 

 var. brachylaenoides has large broadly oblanceolate acute to shortly acuminate 

 leaves and a well-developed large panicle. Typical var. ligustrina has small, 

 narrowly to broadly oblanceolate obtuse, apiculate, often 1-3-mucronulate leaves, 



