19601 



SPATHIPHYLLUM 



43 



out its entire length; geniculum alate, 1.5-3 cm long and 1-2.4 cm wide. 

 Peduncle to 55 cm long; spathe oblanceolate or oblong-elliptic, 12-31 cm long and 

 5-9 cm wide, the apex short-acuminate, the base cuneate and decurrent on the 

 peduncle (3-) 5-8 cm; spadix 5-10 cm long, on a stipe 0.5-1.8 cm long; segments 

 of the perianth separate, entire at the apex, the apical portion erect and forming 

 a collar around the pistil; pistil often constricted between the style and ovary, 

 the style elongate-conical, scarcely exserted beyond the perianth ; ovary 3-locular, 

 with 3-2 ovules affixed very near the base of each of the 3 locules, totaling 8-6 

 ovules per ovary; fruit unknown. 



Type : the original description [Int. Code Bot. Nomencl. (1956) Art. 10, note]. 

 8. ortgiesii is further defined by an illustration of this species in the same volume 

 as the original description. At Kew there is a representative specimen of S. 

 ortgiesii labeled only "Hort. Kew., 12 Jul 1878, X. E. Brown." The specimen was 

 taken from a plant in cultivation; it was prepared by a competent botanist at 

 a time contemporary with the publication of 8. ortgiesii, and possibly represents 

 material from the original introduction (by Roezl?). 



Distribution : Wet slopes near Santiago Tuxtla in southern Veracruz, Mexico. 



MEXICO: Veracruz: steep wet ravine slopes 1.5 miles below Santiago Tuxtla, Apr 1952, 

 Moore 6270 (BH, XV). 



CULT. : Hort. Kew. 12 Jul 1878, N. K. Brou n S.n. (K) ; Engler 79 (P>, G, K, L, P, US) ; 



efc. 



Regel (Gartenflora 19: 39. 1870) stated that this species was probably in- 

 troduced (into cultivation) by Koezl from Mexico. The initial description was 

 undoubtedly drawn from a living plant (from the botanical garden in Zurich). 

 8. origii sii continued to be known only in cultivation until the present. 



Xo type specimen of this species appears to have been preserved ; if there is 

 one, it must be deposited at Leningrad where Regel worked, and was unavailable 

 for this study. Older specimens examined were of garden origin (mostly Engler 

 79), and possibly arose from the original introduction. On the basis of the origi- 

 nal description and figure of this species, a recent collection from the Gulf 

 coast of southern Mexico (H. E. Moore 6270) has been identified as 8. ortgiesii. 

 There are differences between specimens of Engler 79 and the Moore collection, 

 especially in leaf-shape, which is elliptic-oblanceolate in the latter, broadly 

 elliptic in Engler 79. All the Engler specimens, however, are without inflor- 

 escences, and prevent floral comparison. The Brown collection discussed above 

 correlates these various elements, and is florally similar to the Moore collection. 



Engler and Krause (Pflanzenreich 4 23B : 124. 1908) cited Preuss 1444 (Es- 

 cuintla, Guatemala) as representing' this species. I have not examined that speci- 

 men ; its locality suggests that it may possibly represent 8. matudae. Xo specimen 

 collected in Guatemala along the Pacific slope has been seen that may be referred 

 to S. ortgiesii. 



The species seems nearly related to S. wenellandii. It is much larger than 

 8. wendlanelii, and its perianth segments are entire apically. From all others 

 these two species are differentiated by a winged geniculum. 



31. S. atrovirens Schott, Oesterr. Bot. Zeitschr. 8: 179. 1858. Figure 7. 



Leaf -blade lanceolate or oblong-lanceolate, 40-61 cm long and 15-22 cm wide, 

 the apex acuminate, the base obtuse, the primary lateral veins many, arising at 

 an angle of 60-70° ; petiole to 42 cm or more long, alate in the lower two-thirds ; 

 geniculum 1.5 cm long. Peduncle to 50 cm or more; spathe cucullate, elongate- 

 elliptic, 21-26 cm long and 6.7-7.5 cm wide, the apex attenuate-acuminate, the 

 base acute and decurrent on the peduncle 5.5-10 cm ; spadix 3.5-5 cm long, on a 



