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MEMOIRS OF THE NEW YORK BOTANICAL GARDEN 



[VOL. 10 



stipe 0.5-1 cm long; perianth of separate segments; pistil obpyramidal, slightly 

 constricted between the annular style and the ovary, apically snbtruncate, only 

 the elevated stigma exceeding the perianth; ovary 3-locular, the ovules super- 

 posed, varying from 4 to 3(-2) in each of the 3 locules, totaling 12-9 (-8) ovules 

 per ovary ; fruit unknown. 



Type collection: H. Pittier 9053, "bord d'un ruisseau a San Francisco de 

 Guadalupe, alt. 1170 cm," Costa Rica, Oct 1894 (neotype US, duplicate BR). The 

 holotype, Wendland 1264, deposited at Berlin or Vienna, appears to be no longer 

 extant, probably having been burned. 



Distribution: Restricted to the Atlantic slope of the Cordillera in east central 

 Costa Rica. 



COSTA RICA: pres San Francisco de Guadalupe, Mai 1893, Pittier 700.1 (BR). 



This species is one of three Spathiphyllwm species based upon Wendland 

 collections from Costa Rica. Until the present study, 8. atrovirens was known 

 only from the (original) type collection. Though the type specimen appears to 

 be no longer extant, I refer to this species two subsequent collections which agree 

 well with the original description and with Schott's drawing (AY). One of these 

 collections is designated neotype of S. atrovirens. 



The exact locality where Wendland collected his specimen is unknown, 

 having been noted simply "bei Pedregal." Standley (Field Mus. Publ. Bot. 18: 

 48. 1937) stated that Wendland "entered the country by the Sarapiqm Valley, 

 and explored especially the mountain chain from Barba to Turrialba," which 

 restricts his localities mostly to the provinces of Heredia and Cartago, on the 

 Atlantic side of the cordillera. Standley (op. cit. 143) further stated that 8. 

 atrovirens was found in "Guapiles and undoubtedly in other parts of the 

 Atlantic coast; region of San Ramon at 950 meters." Guapiles is in Limon, 

 adjacent to the earlier-named provinces. The Pittier collections came from 

 this same region. 



8. atrovirens is closely related to 8. brevirostre, but the spathe is longer- 

 decurrent upon the peduncle, and the primary lateral veins of the leaf-blade 

 arise at a wider angle than in S. brevirostre. 



32. S. brevirostre (Liebm.) Schott, Aroid. 1: 2. 1853. Figure 8. 



Eydnostachyon brevirostre Liebm. Vid. Meddel. 1-2: 25. 18-49-1850. 



Leaf-blade oblique, lanceolate to oblong, 35-41 cm long and 12-14 cm wide, 

 commonly widest below the middle, the apex cuspidate-acuminate, the base ob- 

 tuse, the primary lateral veins arising at an angle of 45-55° ; petiole shorter than 

 blade (fide Liebmann : incomplete in specimens), sometimes alate up to the 

 geniculum ; geniculum 2.3-4.5 cm long. Peduncle 1.5 or more times as long as the 

 blade, to 66 cm long; spathe elliptic, (13-) 17-23 cm long and 5-8 cm wide, the 

 apex acuminate or subcaudate and 1.5-4 cm long, the base acute and decurrent 

 on the peduncle 2.5-4.5 cm; spadix 3.2-7 em long, on a stipe 0.6-1.4 cm long; 

 perianth of separate segments; pistil shortly exceeding the perianth, constricted 

 between the ovary and the inflated, ± annular style, crowned by the stigma ; 

 ovary 3-locular, the ovules superposed or collateral, varying from 5-3 in each of 

 the 3 locules, totaling 12-9 ovules per ovary; fruit obovoid. rostellate : 10-9 

 ovules maturing (apparently) ; mature seeds unknown. 



Type collection: F. M. Liebmann s.n., "in sylvis umbrosis montanis, Cuesta 

 de Teotelcingo, alt. 4-5000'," Oaxaca, Mexico. Jun 1842 (leetotype C.) Three col- 

 lections were cited with the original description, all from the same region of 

 Oaxaca. The leetotype most adequately represents the species. 



