Microstylis Reicher Schlechter in Fedde Repert. 21 
(1925) 335. 
In accordance with the law of priority, this species 
must be transferred to the earlier generic name Malaxis. 
Recently we have received from Erik M. Ostlund 
of Cuernavaca, Mexico, a single specimen which appears 
to be referable to this species. It agrees well with the 
habit and analytical drawings of the type in our herba- 
rium and with the description, slight discrepancies ap- 
pearing in the obtuse (not acute or acuminate) leaves 
which are slightly below the middle of the stem and in 
the narrower basal part of the lip. The specimen was col- 
lected under oaks on rocky mountain slopes in Guerrero, 
near the Cuernavaca-Taxco Road (Km. 156) at about 
1,650 meters altitude by Otto Nagel (Ostlund 1155) on 
August 10, 1982. 
This species is closely allied to Malaais fastigiata 
(Reichb.f.) O. Ktze. and may prove to be reducible to 
that species when more material is available for compari- 
son. It appears, however, to differ from that species in 
its abrupt terminal ovate-oblong lobe of the lip and in the 
presence of a more or less distinct though small point on 
either side of the base of the middle lobe. 
Malaxis unifolia Michaux Fl. Bor.-am. 2 (1803) 
ery es 
Malaxis ophioglossoides Muhlenberg ex Willdenow 
Sp. Pl. 4 (1805) 90, in synon. 
Achroanthes unifolia Rafinesque in Med. Repos. 
N.Y. Hex. 2, 5 (1808) 352. 
Microstylis ophioglossoides Nuttall Gen. No. Am. Pl. 
2 (1818) 196, sub Malaxis, as subgenus—apud A. 
Eaton Man. Bot. No. & Mid. States ed. 3 (1822) 358, 
Microstyls ophioglossoides Nutt. 8. mexicana Lind- 
ley in Bot. Reg. 15 (1829) t. 1290, pro parte et textu. 
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