218 



MEMOIRS OF TIIK NEW YORK BOTANICAL GARDEX 



[VOL. 10 



7. Kotchubaea urophylla (Standi.) Steyermark, comb. nov. 

 Amaioua urophylla Standi. Field Mus. Bot. Ser. 8: 354. 1931. 



PERU. Dept. Loreto : Mishuyacu, near Iquitos ; forest ; alt. 100 m ; Oct-Nov 

 1929, G. King 419 (holotype F, isotypes NY, US). 



This species is noteworthy in having the staminate flowers capitately clustered 

 on elongated peduncles, 6-merous flowers, densely pubescent calyx and lower 

 surface of the leaf -blades, abruptly long-caudate leaf-blades, and elongate anthers. 



The species was originally placed by Standley in the genus Amaioua. However, 

 the stipules, w T hich are free and do not form a conical cap connate into a sheath, 

 as in Amaioua, are persistent and characteristic of the genus Kotchubaea. From 

 all other members of the genus, K. urophylla may be recognized by the 6-merous, 

 capitate, subsessile to sessile flowers. 



8. Kotchubaea semisericea Ducke, Arch. Inst. Biol. Veg. 2 : 71. 1935. 



Distribution. Amazonian Brazil along Rio Solimoes and near mouth of Rio 

 Javary. 



BRAZIL. Amazonas: Rio Solimoes, Sao Paulo de Olivenga; silva primaria 

 loco alto ; arbor vix mediocris ; floribus albis odoratis ; 31 Oct 1931, A. Ducke 

 24009 (photo of isotype from P at F, isotypes F, US) ; near Palmares, basin of 

 Rio Solimoes, Municipality Sao Paulo de Olivenga; terra firma, low land; tree 

 60 ft high, trunk 7 inch diam ; 11 Sep-26 Oct 1936, Krukoff 8372 (F, NY) ; 

 Esperanca, ad ostium fluminis Javary; silva inundabili secus rivulum; flores 

 ochroleuci demum lutescentes, odorati ; arbor parva ; 26 Oct 1942, Ducke 1134 

 (3 sheets, US, NY). 



9. Kotchubaea longiloba Steyermark, sp. nov. Fig. 75. 



Arbor dioica 15-metralis, ramulis glabris ; stipulis persistentibus oVato- 

 oblongis obtusis 5-7 mm longis 3-4 mm latis glabris marginibus ciliolatis exceptis ; 

 foliis adultis glabris petiolatis, petiolis 5-10 mm longis glabris; laminis sub- 

 coriaceis supra atroviridibus subtus pallidiori-viridibns oblongo-ellipticis vel 

 obovatis apice obtusis vel rotundatis basi acutis 7-13 cm longis 2-6 cm latis 

 glabris, nervis lateralibus utroque latere 4-5 subtus tenuissime prominulis ; 

 floribus masculis speciosis odoratis cymis paueifloris pedimculatis in umbellulam 

 terminalem 2-3-floram compositis, pedicellis 2-7 cm longis erectis glabris; calyce 

 masculo tubuloso 12-17 mm longo 7-10 mm lato extus glabro apice ciliolato 

 excepto intus toto dense flavido cano-sericeo apice irregulariter dentato 4-5 

 dentibus majoribus triangularibus vel rhomboideis obtusis vel rotundatis 1.5-2 

 mm longis cum 4 minoribus deltoideis vel triangulari-ovatis rotundatis vel acutis 

 alternantibus ; corolla mascula hypocrateriformi, tubo pallido-viridi vel flavido 

 22-35 mm longo basi 5 mm diam superne ampliato fauce 8-10 mm longa 10-12 

 mm diam, tubo extus parte basilari 17 mm longa glabra parte apicali cano- 

 puberulenti intus fauce dense flavido-villosa, lobis patenti-descendentibus luteis 

 8, lineari-lanceolatis longe acuminatis 45-50 mm longis 4-5 mm latis, utrinque 

 cano-pulverulentibus ; staminibus 8 vel 10 sessilibus, antheris anguste oblongis 

 inaequalibus 5-7 mm longis apice acumine lanceolato acuminato 1 mm longo basi 

 subsagittatis ; stylo 3 cm longo inferne 2 cm longo glabro superne 1 cm longo 

 breviter piloso ; stigmatibus clavatis vel spatulato-oblongis 5-6 mm longis glabris ; 

 floribus f emineis non visis ; bacca non visa. 



