PHILIPPINE ORCHIDS. 139 
reference being made to the labellum. The nearest approach to Lindley’s 
type, among the Philippine specimens I have examined, is a Bulbophyllum 
from Mindanao collected at Camp Keithley on Lake Lanao by Mary Strong 
Clemens, no. 445. The leaves of this specimen are about 10 em long by 
2.5 cm wide, from pseudobulbs 2 cm long. The lateral sepals are 5 
em long, about equaling the upper sepal. The petals are minute, prolonged 
into setiform tips. The lip is missing. 
Bulbophyllum auratum (Lindl.) Reichb. f. in Walp. Ann. Bot. Syst. 
6 (1860) 261. 
Cirrhopetalum auratum Lindl. Bot. Reg. 26 (1840) Mise. 107; 29 
(1848) t. 61. 
To this species I refer two series of specimens from Mindanao. The 
flowers suggest those of B. Cumingii, but are considerably smaller with 
a much broader upper sepal, abruptly terminating in a filiform appendage, 
and with the yellow-fringed petals broader in relation to their length. 
The foliage of the two species is very similar but in B. auratum the 
pseudobulbs are much smaller than in B. Cumingii. Plate 61 in the 
“Botanical Register’ represents, with reasonable closeness to details, the 
specimens here referred to B. auratum. In B. Cumingii the lateral sepals 
are about 2.6 cm long. In B. auratum they are 1.6 cm long. B. Cumingii 
the upper sepal is 7 mm long including the filiform appendage, and in 
B. auratum it is about 4 mm long. 
MINDANAO, Butuan Subprovince, San Vicente, Agusan River, C. M. 
Weber 137, June 2, 1911, epiphyte, flowers pink; near Butuan, A. Celestino, 
Bur. Sci. 12128, October, 1910. 
Bulbophyllum Bolsteri sp. nov. 
Aff. B. chryseo sed in floribus major. Rhizoma repens. I[n- 
ternodia 2.8 em longa. Pseudobulbi 1.5 ad 2 em longi, cylin- 
dracei, ad apicem fastigiati, in sicco rugosi, monophylli. Folia 
breviter petiolata, elliptico-lanceolata, acuta, coriacea, 3.3 ad 5.2 
cm longa, usque ad 1.7 cm lata. Petiolus 2»mm longus, sulcatus. 
Scapus filiformis, 8 ad 12 cm longus, uniflorus, bracteis tubu- 
laribus 2. Bractea 1 in basi pedicelli unici. Pedicellus cum 
ovariis 1.5 cm longus, filiformis. Sepala lateralia leviter con- 
glutinata, lineari-lanceolata, acuta, 1.6 cm longa, 3.5 mm lata 
prope basim. Sepalum superius simile valde concavum. Petala 
lanceolata, 1-nervia, 6.5 mm longa, 2.5 lata, diaphana, glabra. 
Labellum petalis longior, lineari-lanceolatum, obtusum, 9 mm 
longum, 1.5 mm latum, ad basim biauriculatum, auriculi rotun- 
dati, erecti. Columna minuta, stelidia subulata, gracilia, 1 mm 
longa, glabra. 
MINDANAO, Province of Surigao, F. H. Bolster 349, May, June, 1906. 
Epiphyte, flowers yellowish with purple markings. Here should be re- 
ferred Bur. Sci. 8076 Ramos, collected in Rizal Province, Luzon, a plant 
previously confused with B. chryseum.° 
*This Journal 6 (1911) Bot. 54. 
