Wjegand: a Revision of the Genus Listera 163 



Lip with no basal teeth. 



Stems multibracteolate below the raceme ; flowers small, lip 7 mm. 



c 



long, cuneate, deeply lobed, slightly dilated. China and Japan. 



11. L» ptibertda. 



Stems without bracts; flowers larger, lip 9 mm. long, broadly cune- 

 ate and much dilated, rather deeply lobed. India. 



12. Z. pinetorum. 



I. Listera MiCRANTHA Lindl. Journ. Linn. Soc. i : 176.. 1857, 



Leaves subrotund-ovate, radical : raceme slender, bracts much 

 shorter than the filiform pedicels : lip ovate, cucullate, scarcely as 

 long as the sepals, at the base furnished with a pair of auricles, 

 the middle lobe very acute and provided on each side with a single 

 minute tooth. 



Sikkim Himalayas, alt. 10000 ft. 



No specimens of this species have been studied, and the above 

 description was adapted from the original. It seems to be a 

 transitional form connecting: this ijenus with Neottia, 



. i.^.^^ ^ 



2. Listera Japonica Blume, Orchid. Arch. Ind. 136. 1858. 



Slender (10-20 cm. high), stem terete, erect, glabrous below, 

 more or less glandular-pubescent above the leaves ; the latter 

 (18-22 mm. long, 15-20 mm. wide) opposite, sessile, spreading, 

 ovate, acute or subacuminate, membranous, obsoletely nervose, 

 p-labrous : raceme lax : flowers about 6-9, small, greenish-white : 



pedicels slender, glandular : ovary ^ shorter : bracts minute, 

 ovate, obtuse : perianth segments spreading, exterior lanceolate, 

 acute, interior scarcely shorter, linear, rather obtuse : lip (three 

 times the length of the perianth) scarcely stout, at the base cor- 

 date-sagittate, clasping the column, 3 -nerved, linear-lanceolate, 

 produced above into an elongated, declined, linear, undivided, i- 

 nerved limb, margins involute: column short, thick, not inclined. 



Japan (Kieske). From Nippon Island, locality not indicated. 



Dr. Savatier (no. 3092) (according to Franchet and Savatier). 



Specimens of this species not studied ; the above description 

 was adapted from the original by Blume. 



3, Listera cordata (L.) R. Br. Ait. Hort. Kew. 5: 201. 1813. 



Oplirys cordata L. Sp. PL 946. 1753- 



Epipactis cordata KW. Y\. V^^Qvci'. 1 \ 152. 1785. Willd. Sp. 



PI. Pursh, Y\. Am. Sept. 



Epipactis convallarioidcs Bigelow. Fl. Bost. ed. 2, 323. 1824. 



Ncottia cordata Rich. Mem. Mus. Paris 4 : 59. 181 8. 



