1960] 



SPATHIPHYLLUM 



17 



Section 2. Spathiphyllum sect. Amomophyllum (Engl.) Engl, in DC. Monogr. 

 Phan. 3: 227. 1879. Figure 2F-H. 



Spathe flattened, commonly reflexed and non-deeurrent upon the peduncle; 

 perianth segments separate, or conglutinate or connate below ; pistil subcylindric 

 to obpyramidal, apically subtruncate, scarcely exceeding the perianth. Often 

 slender plants 2-5 dm or more tall. 



Type species : Spathiphyllum gardneri Schott, Aroid. 1 : 2. pi. 3 A. 1853. 



Distribution : northern South America, Panama, and Costa Kica. 



The sect. Amomophyllum previously embraced only four species. I have re- 

 ferred to it nineteen species, six transferred from other sections, and nine species 

 newly described. This breakdown appears to be completely natural. 



4. S. quindiuense Engl. Bot. Jahrb. 37: 120. 1905. Figure 5. 



Leaf-blade somewhat oblique, narrowly elliptic-oblong or lanceolate-oblong, 

 widest at the middle and narrowed equally toward either end, 12-40 cm long 

 and 2-5.2 cm wide, the apex attenuate, the base acute, with ca. 5 pairs of pri- 

 mary lateral veins arising at an angle of ca. 20-35° ; petiole equaling or shorter 

 than the blade, 8-25 cm long (or possibly more; absent in type specimen), alate 

 nearly to the geniculum or less; geniculum ca. 1-1.8 cm long. Peduncle 16-50 

 cm long; spathe elongate-lanceolate to narrowly oblong-elliptic, (4-) 7.5-16 cm 

 long and 1-3 cm wide, the apex attenuate, the base acute, somewhat clasping or 

 decurrent to 1 cm, white within, green outside (at least in age) ; spadix 2-7 cm 

 long, on a stipe 0.5-2 cm long ; perianth of separate segments ; pistil obpyramidal, 

 angular, apically truncate, slightly constricted between the annular style and 

 the ovary, only the coronate stigma exceeding the perianth, ovary 3-locular, the 

 ovules superposed or ± collateral and affixed near the base of the locules, vary- 

 ing from 5-2 in each of the 3 locules, totaling 14-6 ovules per ovary; fruiting 

 spadix smooth ; fruit subglobose, ca. 3 mm high, apically truncate ; seeds fewer 

 than the ovules, oblique-ovoid, the surface slightly roughened or verruculose, 

 somewhat furrowed and foveolate. 



Type collection: J. J. Triana 693, "Quindio, 1000 m.," Tolima, Colombia 

 (holotype BM). 



Distribution : Along rivers in the Magdalena Valley of Colombia, and in 

 adjacent Panama. 



PANAMA: along Charare E. above Chepo, prov. Panama, Oct 1911, Pittier 4724 (US); 

 western slope and summit of Cerro Valle Chiquito, prov. Code, Jul 1935, Seibert 507 (F, 

 GH, MO, NY). 



COLOMBIA: 12 leguas se de Barranca Bermeja, de la margen dereche del Eio Opon, 

 Santander, Sep 1954, Castaneda 4860 (COL, US) ; Rio San Pedro, Narifio, Antioquia, Dee 

 1891, Lehmann 7590 (F, GH, S, U, US). 



Until the present, S. quindiuense was known from the type only. Several 

 other collections from Colombia and Panama have been referred to this species. 

 Before examination of the type specimen (Triana 693), it had been concluded 

 that a distinct taxon existed in that region, represented especially by Seibert 507 

 and Lehmann 7590. Only much later did I have the opportunity to study the 

 type specimen of S. quindiuense; although I have been unable to actually com- 

 pare it side by side with the other specimens, all appear to be conspecific. 



Specimens referred here vary considerably in size, yet all have similar pro- 

 portions. The distinguishing features of S. quindiuense are the narrow leaf and 

 spathe of coarse texture, and typically the 5-4 ovules per locule. Lehmann 7590 

 and Pittier 4724 possess only 3-2 ovules per locule, but in all other characteristics 



