tirely glabrous, apparently somewhat fleshy in living material. Peduncle shorter than the leaf, solitary, 1-to 2-flowered, almost completely concealed by the vaginiform bracts. Flowers small. Lateral sepals elliptic, broadly acute, 1.75 mm. long, 1-nerved, connate for about two-thirds their length. Dorsal sepal similar but broader, 3-nerved. Petals minute, 0.25 mm. long, 0.5 mm. wide, rhombic, minutely ciliate. Labellum very small and completely hidden beneath the column, ovate, 2-nerved, 0.4 mm. long. Column short-cylindric and strongly compressed with two erect wings at the summit. Anther terminal.

ECUADOR, "Andium Quitensium, crescit in sylvis opacis ad arborum truncos, alt. 7000 pedes, Floret. Septembri, Octobri. 21 Januar 1856," Jameson 88. (TYPE in Gray Herb.)

ILLUSTRATION: 1, plant drawn natural size. 2, section of rhizome with leaves (X5). 3, flower (X10). 4, column and labellum as seen from below (X10).

Lepanthes saccosepala Smith & Harris, sp. nov. Habitus illum L. pseudocaulescentis simulans. Folia elliptica, 4–11 mm. longa, utrinque dense setosa. Pedunculus uni- vel bi-florus. Sepala lateralia lanceolata, fere ad apicem connata. Sepalum dorsale orbiculatum, saccatum. Labellum subreniforme, apiculatum.

Rhizome creeping, stem-like, 15-25 cm. long, simple or sparingly branched, bearing infundibuliform sheaths with setose-ciliate mouths. Leaf solitary at the summit of the very short stem, elliptic, entire, 4-11 mm. long, 5-nerved with the outer pair of nerves branching from the inner pair at a point about one-third the distance from the base of the leaf to the apex and rejoining them shortly above the middle, densely setose, apparently somewhat fleshy when fresh. Peduncle much shorter than the leaf, solitary, 1-to 2-flowered. Flowers small, gla

brous, reddish in the dried specimens. Lateral sepals lanceolate, 4 mm. long, 1-nerved, connate almost to apex. Dorsal sepal orbicular with margin inrolled, 4 mm. long, 5-nerved, saccate. Petals ovate-lanceolate, asymmetric, much produced on the side toward the lip, 1-nerved. Labellum subreniform, 1-nerved, apiculate. Column slenderly clavate. Anther terminal.

ECUADOR, in moss, forests on west flank of Pichincha, 7000-8000 ft., Jameson s.n. (TYPE in Gray Herb.)

ILLUSTRATION: 1, section of rhizome with leaf (×5). 2, flower (X10). 3, labellum, as seen from above (X10). 4, column, as seen from the side (X10).

The small number of vine-like species of Lepanthes may be keyed as follows:

1. Petals rhombic, broader than long.

2. Labellum broadly lunate, not hidden by the column.

1. L. pseudocaulescens

2. Labellum ovate, completely hidden by the column. 2. L. polygonoides

1. Petals not rhombic, longer than broad.
3. Labellum neither apiculate nor 3-lobed.

3. Labellum either apiculate or 3-lobed.

4. Dorsal sepal oblong.

5. Petals oblong.

5. Petals triangular.

3. L. pilosella

. 4. L. Nummularia . 5. L. dasyphylla

4. Dorsal sepal broadly ovate to suborbicular.
6. Apex of dorsal sepal abruptly acute.

6. L. peperomioides

6. Apex of dorsal sepal broadly obtuse.

7. L. saccosepala

NOTES ON PHILIPPINE ORCHIDS II

BY

OAKES AMES

Dendrobium Bullenianum Reichenbach filius in Bot. Zeit. 20 (1862) 214.

Dendrobium erythroxanthum Reichenbach filius in
Gard. Chron. ser. 2, 2 (1874) 162.

Dendrobium topaziacum Ames, Orchidaceae 5 (1915)

140.

In 1915 when Dendrobium topaziacum was proposed as a new species from the Philippines, I suggested that it might prove to be conspecific with D. Bullenianum Reichb.f. At that time, the Reichenbachian Herbarium was inaccessible and it was impossible to interpret D. Bullenianum from the original description. Indeed, there was reason to suspect that D. Bullenianum was not a native of the Philippines because Reichenbach in referring to it as having come from Manila left room for doubt. In his monograph of Dendrobium, Fritz Kränzlin did not remove this doubt, simply with a query citing Luzon as the source of the type.

From a study of D. Bullenianum by means of the analytical drawings preserved in Reichenbach's herbarium, it is clear that D. topaziacum is referable to it. It is also clear that D. erythroxanthum is conspecific with D. Bullenianum.

Dr. Kränzlin in his monograph of the genus Dendrobium in Engler's Pflanzenreich extended the geographical range of D. Bullenianum to the Samoan Islands on the evidence of specimens collected on Upolu by Reinecke (nos. 294 and 392). This is a rather remarkable extension of range. It is not at all improbable that the Samoan species will in the light of further research, be found distinct from the Philippine species.