described as Scaphyglottis Summersi cannot be consid- 
ered as specifically distinct from the species that was first 
published as Ponera punctulata. There are, however, 
several discrepancies between the two concepts which 
make a varietal separation seem advisable. 
In the first place, Scaphyglottis Summersit commonly 
presents a very different vegetative appearance from S. 
punctulata. It usually has much branched stems, with 
the upper portion of the stem-members commonly con- 
spicuously surpassing the uppermost leaf-sheath, whereas 
S. punctulata has simple or few-branched stems which 
are distichously leafy with only the uppermost part 
emerging as a short, naked portion above the upper 
leaf-sheath. 
There are also marked differences in the flowers. The 
lip of SS. Swmmersu always seems to have a short but dis- 
tinct claw, and the base of the lamina is more or less 
rounded to subcordate, whereas the lip of the species has 
a sessile cuneate base. Finally, the column of S. Sum- 
mersii is always shorter than that of S. punctulata. 
This concept, as Scaphyglottis Summers, was first 
described from Ecuador, but it has been subsequently 
detected from Colombia, Peru and Bolivia. 
Polystachya nana (Poepp. & Endl.) Reichenbach 
filius in Walp. Ann. 6 (1863) 688.—Cogniaux in Martius 
F]. Bras. 8, pt. 4 (1896) 319. 
Encyclia nana Poeppig & Endlicher Nov. Gen. ac Sp. 
2 (1837) 10, t. 118A. 
Encyclia polystachya Poeppig & Endlicher Nov. Gen. 
ac Sp. 2 (1887) 10, t. 113B. 
Stelis foliosa Lindley in Ann. & Mag. Nat. Hist. 2 
(1839) 330, t. 17. 
Polystachya cerea Lindley in Bot. Reg. 26 (1840) Mise. 
p. 86, no. 208. 
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