Juty, r914.] THE ORCHID REVIEW. 197 
northern Ecuador. Some other localities are mentioned. The whole 
region in which Miltonia vexillaria grows is well defined and similarly 
bounded. With one exception, the variety albicans, which occurs at 
4000-4500 feet elevation on the river Cuaiquer, the lower and higher limits 
of Miltonia vexillaria are almost everywhere about 4750 and 6500 feet 
above sea-level. 
The average mean temperature of the year between these Jimits 
fluctuates between 62° and 67° Fahr.. that of the variety albicans from 
68° to 70° F. The extreme daily range when the mornings are clear and the 
days bright is from 53° F. minimum to 77° F. maximum. Generally 
speaking, Miltonia vexillaria is found isolated in places influenced by local 
climatic conditions, being most abundant at its medium altitude. It 
always occurs on the borders of the denser mountain forests which have 
below them either open or park-like stretches covered with low bushes or 
coarse savannah grass, and above the extremely humid and almost 
impenetrable and luxuriant forests that cover the Cordilleras at that 
altitude. 
The characteristic hygrometric peculiarity of the whole region over 
which Miltonia vexillaria is spread is, that it is constant nearly throughout 
the year; even in what is called the dry season the air is only relatively less 
humid. The daily changes in the weather may be thus summarised :— 
During the dry season the day breaks clear, but soon after sunrise a thick 
mist settles over the forest till about 10 a.m.; it then ascends higher, and 
the rays of the sun begin with difficulty to penetrate it; the air is then 
filled with a bluish mist that shuts out the distant view. A light shower of 
rain falls in the afternoon about two o’clock, which often continues till 
evening, when it gives place to a thick mist.. During the rains there is 
generally a light wind blowing towards the mountains from the lower river 
valleys. Inthe rainy season the circumstances are nearly the same, except 
that the rain is more copious, the drops heavier, and the showers of longer 
duration. At times the rain is continuous for several days in succession ; 
the atmosphere is then at the saturation point. — 
Of the geographical varieties Lehmannii was the first to be recorded 
(Rchb. f. in Gard. Chron., 1880, i. p. 586), dried specimens having been 
sent by Lehmann. The locality was vaguely recorded as “‘ Western Andes 
of South America,” but this can now be added from the Lehmann 
Herbarium, where the specimens are localised as from San Miguel and 
Pususquer, West Andes of Tuquerres, flowering in March, 1880. They 
are smaller than in the type, but larger than those of the variety 
€cuadorensis, collected at Chiguinda and Cuchipamba, on the Eastern 
Andes of Sigsig, Ecuador, blooming in May. Var. Lehmannii was 
afterwards cited by Lehmann as a synonym of ecuadorensis (Garienfl., 
