WiEGAxi) ; A Revision of the Genus Listera 1G9 



Piper, Lamb; Idaho, Latah Co., Sandberg, no. 458, Quartzby, 



Mulford; Alaska, Gamisse ; Behring Island, Macoun, no 231 

 (1891). 



10. Listera Smallii notn. nov. 



if^ 



1897. 



Not of Don. Prod. Fl. Nep. 2Z. 1825. 



Stem slender (15-30 cm. high), glandular-pubescent above the 



leaves, usually with one or two ovate-subulate bracts below the 



raceme ; leaves borne at or below the middle of the stem, rather 



small (15-25 mm. long), ovate-reniform, mucronate, often apicu- 



late: raceme few-flowered, open: rachis glandular : bracts small, 



narrowly rhombic-ovate, acute, glabrous : flowers large, on very 



slender glabrous pedicels which equal or exceed the glabrous 



ovary, twice as long as the bract : sepals lanceolate : petals lance- 



lincar, acutish, longer than the ovary {Y^ length of lip), spreading 



or reflexed: lip large (9 mm. long), not' ciliate, broadly obovate and 



much dilated at the rounded apex, cleft y^-y^ way down by an 



open sinus, provided with a large and broad (i mm. long) oblon^ 



or obovate, obtuse, 1 -nerved, glabrous tooth on each side above 



the sessile base, many-nerved, folds wanting : column rather short 



(1.5 mm. long) and thick. 



Damp woods, mountains of southern Pennsylvania, Maryland, 

 Virginia, and North Carolina, also in Japan and the Amur region 

 of Eastern Asia. 



Tin's is the American representative of the Asiatic group of 

 species having reniform leaves. The specimens from Asia and 

 Japan differ from the type in having much smaller flowers with the 

 lip only y^ as long as the sepals, and may possibly represent a 

 distinct .species. When dissected the outline of the lip Is almost 

 exactly the same in both cases. 



Specimens examined: Pennsylvania, Porter; Virginia and 

 North Carolina, Gray and Carey (184 1); Roan Mountains, Gray 

 (1879); North Carolina, LeRoy and . Ruger (1872), Curtis.s, 

 Beardslee and Kofoid (1891), Blowing Rock, Small and Heller', 

 no. 251 (1891); Maryland, Gray (1843); Virginia, Britton and 

 Vail (1892); Nixo, Japan, Maximowicz (1864), Gray Herb. Dis- 

 tributed under the name L. Japonica Bl.; Amur Region, Maxi- 

 mowicz, labeled Z. Eschscholtdana Cham. Gray Herb. 



fc> 



