s 



32 MEMOIRS OK THE NEW YORK BOTANICAL GARDEN [VOL. 10 



ca. 0.8 em longo; perianthii segmenta separata; pistillum obpyramidale, apice 

 truncato, stigmate papilliformi perianthium superanti ; ovarium 3-loculare, locu- 

 lis uniovulatis ovulo solitari prope basim loculi cuique affixo ; fractals ignotus. 



Type collection: E. P. KilUp & A. C. Smith 261~)3, ''Dept. Junin, Pichis 

 Trail, Santa Rosa, alt. 625-900 meters; dense forest." Peru; 6. 7 Jul 1929 (holo- 

 type US, isotype XY). Known only from the type collection, which was originally 

 referred to the genus St< nosp( rmatium by Krause; it is clearly a SpathAphyllum. 



"While represented by a single collection of two plants. 8. minor is distinctive 

 and is described as new without reservation. Tt is low in stature, and has 

 proportionally rather broad leaves as compared to the other species whose 

 locules are uniovulate (8. gracilis and 8. patulinervum) . 8. minor shows a strong 

 relationship to the species of the sandstone areas of Ouayana. especially to N. 

 neolinae, but differs in the uniovulate condition of its locules. 



21. S. gracilis Bunting, sp. now Figure 6 



Foliorum lamina obliqua. anguste oblongo-elliptica. 18-21 cm longa et 2.8-3.3 

 cm lata, ad apicem attenuata. ad basim acuta, ad marginem leviter undulata. 

 venis primariis ca. 7-8-jugatis angulo ca. 30-40° divergentibus ; petiolus gracilis. 

 26-32 cm longus, ad dimidium vaginatus; geniculum 0.6-0.8 cm longum, 

 Pedunculus 29-34 cm longus ; spatha ± lanceolata. 8-11 cm longa et 1.3-1.6 cm 

 lata, apice attenuato. basi acuto vel attenuato et breviter ansato; spadix ad 2.7 

 cm longus, stipite ca. 1 cm longo, latitudine duos flores aequans; flores bimeri. 

 perianthii segmenta separata ; pistillum cylindrico-obpyramidale. apice subtrun- 

 eato vel obtuso-subconico. stimulate elato ; ovarium 2-loculare. loculis uniovulatis. 

 ovula solitaria oblonga in septo centrali prope basim locularem affixis ; fructus 

 ignotus. 



Type collection: G. Tessmann 1837, "Ost-Pera: Stromgebiet des Maranon am 

 Pongo de Manseriche, ca. 77°30' West." 1924 (holotype CI-DEL. isotype NT). 

 Known only from the type collection. The typewritten label on the isotvpe sheet 

 states ■ ■ Puerto Melendez, below Pongo de Manseriche" as the collection locality. 



8. gracilis is closely allied to 8. patulinervum, but differs in (1) the narrower 

 angle at which the primary lateral veins arise, and (2) the acute-cuneate base of 

 the leaf-blade. The base of the blade of 8. patulinervum is nearly obtuse and the 

 margins are curved. 



22. S. patulinervum Bunting, sp. no v. Figure 6. 



Foliorum lamina obliqua, anguste oblongo-lanceolata. supra laete viridis, infra 

 pallidior. 16.5-18.5 cm longa et 2.4-3.2 cm lata, ad apicem attenuato-acuminata. 

 ad basim acuta, venis primariis 8-9-jugatis angulo 75-80° divergentibus ; petiolus 

 gracilis. 24-29 cm longus. ad vaginatus; geniculum 0.6-0.8 cm longum. Ped- 

 unculus 31-33 cm longus ; spatha lanceolata. 6.5-6.8 cm longa et 1.6 em lata, apice 

 longe-acuminato ad subcaudatum [1.5-2.5 cm longo], basi obliquo-acuto. albo, in 

 aetate viridescenti ; spadix laete viridis. 2.1 cm longus, stipite 4 mm longo; flores 

 2-meri. perianthii segmenta separata ; pistillum plus minusve obpyramidale. 

 apice truncato, stigmate papilliformi perianthium superanti; ovarium 2-loculare. 

 loculis uniovulatis. ovula solitaria in septo centrali prope basim locularem affixis ; 

 spadix fructiferus ± tubereulatus ; fructus obovoideo-sphaeroideus. ea. 3.5 mm 

 longus, apice subtrnncato. breviter rostellatus; semina 1 vel 2. reniformi- 

 orbicularia in faciei obliqua, superficie plus minusve levi. 



Type collection: W. H. Camp E -106.0, ''common on banks; lvs. bright green 

 above, paler below; spadix bright green, spathe clear white, sometimes with green 

 in center or alone margins, and tip green; becoming pale green with age; 



