reduction of the species to Microstylis merely quotes the 
earlier description. However, (in Bentham Pl. Hartweg. 
(1845) 52) Lindley cites as Microstylis macrostachya a col- 
lection of which we have a photograph with a floral analy- 
sis (apparently made by Finet). In this drawing the 
round-ovate lip is shown to be sharply retuse at the apex 
with the disc concave in the centre. There is indicated 
also the presence of a little tooth just below the retuse 
apex which usually becomes, at least in herbarium speci- 
mens, a more or less prominent lobule in the centre of 
the retuse apex. In a large number of collections exam- 
ined the development and consequent prominence of the 
little tooth appears to vary. Ridley, in his monograph of 
Microstylis (Journ. Linn. Soc. 24 (1888) 816), separates 
Microstylis macrostachya from M. montana by the follow- 
ing characteristic— ‘‘Labellum apice bilobo. .. macro- 
stachya. Labellum apice trilobo, lobo mediano minuto. . . 
montana.’’ However, Rothrock says, in his description 
of Microstylis montana, ‘‘lip...obtuse or occasionally 
notched at apex.”’ In the flowers from the type of M- 
crostylis montana examined the lip appears always to be 
retuse with the central tooth relatively inconspicuous. 
The separation of Microstylis montana from Malaats 
macrostachya, therefore, would not seem reasonable. 
This species appears to be variable in size, in having 
usually a single leaf but rarely two leaves, and in the 
lobing of the lip. 
It extends from Arizona through Mexico to Costa 
Rica (small form). 
Malaxis majanthemifolia Schlechtendahl & 
Chamisso in Linnaea 6 (1881) 59. 
Malaais ichthiorhynca A. Richard & Galeotti in 
Ann. Sci. Nat. ser. 8, 3 (1845) 18. 
Malaais cochleariaefola A. Richard & Galeotti in 
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