viii, c, 6 Ames: Notes on Philippine Orchids 425 
4. DENDROBIUM {§ CRUMENATA) ROBINSONII sp. nov. 
Herba epiphytica, ±40 cm alta, f oliis teretibus, Caules flaccidi, 
supeme ramosi, internodia 3-4 inferiora incrassata, angulata, 
pseudobulbum fusiformem usque ad 11 cm longum formantia, 
cetera teretia. Folia teretia, acuta, ascendentia, usque ad 7.5 
cm longa, in sicco circiter 2 mm in diametro. Flores in apice 
caulis singuli, flavidi, purpureo-striati,±19 mm longi; bracteae 
in sicco chartaceae, circiter 2 mm longae. Pedicellus pergra- 
cilis, cum ovario 11 mm longus, ascendens, glabrus. Sepala 
lateralia antice elongato-triangula, obtusa, 5-nervia, postice in 
mentum obtusum leviter incurvum elongata, pars anterior 9-10 
mm longa, 4 mm lata, mentum antice usque ad basim apertum 
9 mm longum. Sepalum dorsale oblongum, valde obtusum, 1 cm 
longum. Petala oblongi-oblanceolata, acuta, 3-nervia, nerviis 
ramosis, 1 cm longa, vix 3 mm lata. Labellum circiter 1.5 cm 
longum, valde retusum, margine prope apicem irregulariter 
dentato, vix 3-lobatum sed subpanduriforme, breviter unguicu- 
latum, prope basim cuneatum, in disco ad medium cristatum, 
lineae elevatulae per discum 3. 
MiNDORO, Bulalacao, Bur. Sci. 5642 Robinson (flowering in Manila), 
December, 1909. "Flowers pale greenish-yellow, throat with purple lines 
on the side, lip with a dark-purple blotch at base." 
A very distinct species of the § Crumenata^ characterized by the swollen 
base of the stem and the fleshy terete leaves. 
5. DENDROBIUM (§ PEDILONUM) VANOVERBERGHM sp. nov. 
(Plate XIII.) 
Habitu Z). furcato Reinw, baud dissimilis. Caules graciles, 
pauciramosi, vix 2 mm in crassitudine, circiter 4.5 dm alti, 
suberecti, multiarticulati, nodii nigro-maculati. Folia lineari- 
lanceolata, acuta, subcoriacea, circiter 6.5 cm longa, 2.5 mm 
lata, disticha. Racemi pauciflori. Bracteae coloratae. Flores 
circiter 4.5 cm longi, praeclari; sepala :petalaque subalbida, 
labellum purpureum. Sepala lateralia oblonga in mentum sub' 
acutum producta, 3.5 cm longa, 11 mm lata; mentum 1.5 cm 
longum. Sepalum dorsale oblongi-lanceolatum, obtusum, circiter 
3.2 cm longum, 1.2 cm latum. Petala ovato-oblanceolata, obtusa, 
circiter 3 cm longa, 1.5 cm lata. Labellum longiunguiculatum, 
margine antice minute crenulato, supra medium dilatatum, la- 
mina late ovata, 2.5 cm longa, 2 cm lata, obtusa. Labelli 
unguis linearis 2 cm longus in mento sepalorum lateralium 
absconditus. Gynostemium utrinque lobulatum. 
