28 



MEMOIRS OF THE NEW YORK BOTANICAL GARDEN 



fvbL. 10 



sabanita and scrub forest, cumbre at 2000 m alt., Feb 2, 1951, Cowan & Wurdack 

 31193; Feb 4, 1951, Cowan & Wurdack 31235. 



A remarkably distinct species known only from Cerro Paru. 



6. Saxofridericia inermis Ducke, Arch. Inst. Biol. Veg. Rio. 4: 1. 1938. 



Type: planta usque ad 1.5 m alta, flor. luteis, ad ripas arenosis locis palu- 

 dosis, super cataractas Rio Curicuriary affl. Rio Negro, civit, Amazonas, Brazil, 

 Nov. 23, 1936, A. Ducke Herb. J. B. R.J. 35594 (holotype RB, isotypes NY, US I . 



Distribution : Riverine banks, woodland subject to periodic inundation, drain- 

 age of the Rios Negro and Casiquiare, Brazil, Colombia, and Venezuela. 



7. Saxofridericia petiolata Maguire, sp. nov. 



Herbae perennes robustae ; caudice cum vaginis foliorum marcescentibus 

 fibroso; laminis 1.5-3.0 m longis; vaginis 15-20 (25) cm longis, 3 cm latis 

 conduplicatis, conspicue scariosomarginatis, ad basim late dilatatis; petiolis 

 vulgo quam laminis duplo longioribus; laminis 15-20 mm latis, subsucculentis, 

 venis improminulis ; pedunculo solitario, 1.5-2.5 m longo, tenui aliquantum com- 

 presso, gradatim crassato, sursum 8-10 mm crasso ; inflOrescentia hemisphaerica 

 vel subglobosa, 2.5-3.0 cm lata; bracteis involucralibus connatis; spiculis 50-80, 

 14-16 mm longis, sepalis inclusis; bracteolis 20-22, 9-10 mm longis, subaequali- 

 bus, spathulatis, oblanceolatis, acute breviacuminatis, marginibus anguste scario- 

 sis; sepalis 14-15 mm longis, lanceolatis valde bilateraliter asymmetricis ; petal is 

 antherisque non visis; ovario 5 mm longo ; ovulis 6-10 in loculo ; seminibus non 

 visis. 



Type : perennial herb to 3 m high, frequent in recently flooded thickets of 

 bamboo and palm, on white sand, Rio Temi, Rio Atabapo, Terr. Amazonas. 

 Venezuela, Oct 19, 1950, Maguire 29320 (holotype NY). Paratype : marshy 

 thickets in scrub savanna about "laja" 4 hr. below Yavita, Rio Temi, Oct 19. 

 1950, Maguire 29325. 



8. Saxofridericia aculeata Kornicke, Linnaea 37: 457. 1872. 



Saxo-Fridericia australis Gleason, Bull. Torrey Club 60: 350. 1933. 



Type : in vallibus paludosis umbrosis et in aquosis inter Couana et Aprouague. 

 Guiana gallica, L. C. Richard s.n. (holotype P). 



Distribution: marshes or swamps in rain-forest, Suriname, French Guiana, 

 and Para, Brazil. 



9. Saxofridericia subcordata Kornicke, Linnaea 37: 459. 1872. 



Rapatea pandanoides Linden & Andre, 111. Hort. 20: 213. pi. 15S, 154. 1873. 

 Type: moist forest, Barra, only one plant found, July 1851, Spruce 1724 

 (holotype P, isotype K). 



Distribution : marshy or swampy rain-forest, Amazonas, Brazil. 



2. Phelpsiella Maguire, gen. nov. 



Capitulum parvum valde compressum bispathatum ; spathis' orbiculari-obo- 

 vatis, adpressis erectis, marginibus primo conatis, paucifloris; spiculis sessili- 

 bus, bracteolis gradatis; antheris bithecatis, non muriculatis, biporatis, poris 

 rotundis apicalibus; ovario triloculari, loculis pluriovulatis, ovulis axi medio 

 affixis. 



