20 



MEMOIRS OF THE NEW YORK BOTANICAL GARDEN 



[VOL. 10 



perianth, apically conic-subtruncate, constricted between the annular style and 

 the ovary, the stigma coronate; ovary 3-locular, the ovules superposed, varying 

 from 6-3 in each of the 3 locules; totaling 15-11 ovules per ovary; fruiting 

 spadix somewhat tuberculate ; fruit obovoid, rostellate ; seeds as many as the 

 ovules, zb oblong in profile and very angular, the inner faces smooth, the outer 

 face smooth or somewhat verruculose along the angles. 



Type collection: G. Gardner 1867, ''about 2 feet high, banks of the river near 

 Crato; spathe white with a green central rib," Ceara, Brazil; Nov 1838 (lecto- 

 type K, isotypes BM, G-BOIS, G-DC, G-DEL, S, US). 



Distribution : River banks in the forests of Maranhao and Goias, Brazil. 



BRAZIL Ceara: Gardner 1868 (P) ; Serra do Araripe, Procendencia do Granjeiro, Sep 

 1933, Luetzelburg 25842 (M). Goias: region of southern Serra Dourada at long. 48°50'W. lat. 

 13°45' S, forest along road 13 km east of Formosa, Mai 1956, Dawson 15135 (LAM). Maran- 

 hao: Bon 2 (BR). 



This is the southernmost species of Spathiphyllum in eastern South America. 

 For nearly a century 8. gardneri was known from the type collection only. I am 

 the first to assign Don 2 to this species. Though Lanjouw included G. Don among 

 the West Indian collectors only, there can be little question that the specimen 

 in the Martius Herbarium that bears his name was collected in Brazil and repre- 

 sents S. gardneri. The original set of Don's collections is at Edinburgh; un- 

 fortunately, I have not seen that material. 



Two modern collections are identified as 8. gardneri. Although Luetzelburg 

 25842 was collected in the type locality, the leaves are very small in comparison 

 to those of other specimens of this species. Nearly identical to the type material 

 is Dawson 15135, collected in the province of Goias. 



Schott originally described the sepals of 8. gardneri as connate; Engler de- 

 scribed the perianth as 6-lobed apically with the segments connate below, which 

 is essentially accurate. Such a criterion, however, is no good reason for their 

 placing this species in sect. Massowia with those species which have a cup-like 

 perianth. 8. gardneri appears to be closely allied to 8. cuspidatum, and is in- 

 cluded in sect. Amomophyllum. From the latter species, 8. gardneri differs in 

 its shorter spadix which is nearly sessile, and in the ovules which are superposed 

 and affixed well up in the locules. 



7. S. cuspidatum Schott, Oesterr. Bot. Wochenbl. 7: 158. 1857. Figure 5. 



Leaf -blade lanceolate to oblong-elliptic, 24-38 (-51) cm long and 5-10 (-13) 

 cm wide, the apex acuminate, the base acute, with ca. 9 pairs of primary lateral 

 veins arising at an angle of 35-45°; petiole somewhat longer than the blade, 

 (11-) 25-45 (-66) cm long, conspicuously alate in the lower two-thirds; genicu- 

 lum 1.2-2 (-3) cm long. Peduncle ca. 2-2.5 times as long as the blade, 35-70 

 (-100) cm long; spathe lanceolate to elliptic, 10-20 (-26) cm long and 3-6 cm 

 wide, the apex acuminate to subcaudate, the base acute or narrowed into a short 

 handle; spadix 4-9(-13) cm long, on a stipe l-2.5(-3.8) cm long; perianth of 

 separate segments; pistil obpyramidal, apically truncate, slightly constricted 

 between the ± annular style and the ovary, only the nipple-like stigma exceed- 

 ing the perianth ; ovary 3-locular, the ovules affixed near the base of the locules, 

 varying from 4-2 in each of the 3 locules, totaling 12-6 ovules per ovary ; fruit- 

 ing spadix smooth ; fruit obovoid, apically truncate ; seeds as many as the ovules, 

 oblique-oblong-ovate in profile, the surface quite smooth or shallowly furrowed 

 and foveolate. 



