NOTES ON PHILIPPINE ORCHIDS, IV. 
11 
dm above the ground, sheathing at the base, about 55 cm long, 
1.5 to 3 cm wide, linear, acuminate, acute, prominently 5 -nerved. 
Scape erect, smooth, .about 6 dm long, with four, closely ap- 
pressed, sheathing, acute bracts about 4 cm long. Floral bracts 
persistent, smooth, lanceolate, acute, 1.5 to 2.5 cm long. Flowers 
5.5 cm in diameter when spread out, 6 to 15 in a loose raceme, 
the lowermost 4 cm apart. Pedicel and ovary 3 cm long, slender. 
Lateral sepals oblong, subacute, broadly falcate, 3 cm long, 1 to 
2 cm wide. Upper sepal lanceolate-oblong, obtuse, 3.5 cm long, 
11 mm wide. Petals ovate-lanceolate, subfalcate, obtuse, 3.2 
cm long, 1.4 cm wide. Lahellum obscurely three-lobed, exclud- 
ing the short spur, about 2.5 cm long. Lateral lobes slightly 
shorter than the middle lobe, rounded, obtuse, obscurely cren- 
ulate, smooth. Middle lobe irregularly dentate, the margin 
crumpled or ruffled, deeply retuse at the rounded tip. Disk 
smooth, the three central nerves carinate above the middle, 
somewhat wavy, diminishing as they approach the tip. Spur 
cylindric, round-pointed, 7 mm long. Column comparatively 
stout, 1.5 cm long, hairy on the anterior surface. Pollinia 8. 
Flowers yellow, the ruffled margin of the middle lobe brownish. 
Luzon, Bontoc Subprovince, Father M. Vanoverbergh 1288, June 28, 1911, 
growing in brooks, 1,650 m above sea level. 
Phaius linearifolius belongs to the groups of which Phaius fiavus is 
the best known species. I have refrained from identifying it with P. flavus 
as I find many points of dissimilarity between my material and the 
specimens of P. flavus examined, and also as none of the numerous diag- 
noses in literature describe my plants adequately, and as the illustrations 
of P. flavus fall far short of depicting them. 
CALANTHE R. Br. 
Calanthe lacerata sp. nov. 
Radices lanatae. Caules abbreviati. Folia anguste lanceo- 
lata, acuminata, acuta, plicata. Petiolus ad basim vaginans. 
Scapus foliis longior, gracilis, erectus, elongatus, tomentosus, 
bracteis bene appressis, vaginantibus. Bracteae inflorescentiae 
lanceolatae, pedicellis breviores. Sepala lateralia elliptico-lance- 
olata vel elliptica, acuta. Sepalum superius simile. Petala 
oblonga ad medium satis dilatata, ad apicem truncatum, apicu- 
latum. Labellum 4-lobatum, lobi inferiores oblongi, subfalcati, 
obtusi. Lobi anteriores divaricati, cuneati, flabellati, lacerati, 
papillosi. In disco ultra columnam utroque calli complanati. 
Calcar gracilis. 
Roots stout, lanate. Stem very short. Leaves about 4, about 
2 dm long, up to 2 cm wide, narrowly lanceolate, acute, plicate. 
