Pe ees ra et ee 
THE PHILIPPINE JOURNAL OF SCIENCE, C. BOTANY. 
' Vox. IX, No. 3, JUNE, 1914. 
A NEW SPECIES OF ROTTBOELLIA 
By F. Tracy HUBBARD 
(Cambridge, Mass., U. S. A.) 
In a small collection of grasses made near Taytay, northern 
Palawan, May 15 to 31, 1913, and sent to me through the courtesy 
of Mr. E. D. Merrill, there was an extremely interesting and 
rather anomalous new species of Rottboellia. After a critical 
study of the material I was unable to convince myself as to its 
generic status so I sent a specimen of it to Mrs. Agnes Chase of 
the Department of Agriculture at Washington, D. C., who was 
noncommittal in her reply ; consequently I sent a specimen to Dr. 
E. Hackel who pronounced it a “distinct new species, somewhat 
anomalous in the genus Rottboellia.” I beg to express my 
thanks to both specialists. : 
ROTTBOELLIA TRIFLORA sp. nov. 
Perennis, ad basin plicata, aliquando caespitosa, 30 ad 50 cm 
altitudine, radicibus fibrosis. Culmi basin versus vaginis im- 
bricatis plus minusve obtecti, foliis breviores vel ea superantes, 
canaliculati, infra nodos dense barbatos pubescentes aliter gla- 
bri, ramis floriferis 3-7-nis. Waginae inferiores breviter ad- 
presseque pubescentae, superiores aliquando subglabrae, ad folii 
junctionem cum annulo pubescente munitae, marginibus ciliatis. 
Ligula fibrillosa, cirea 2 mm longa. Folia erecta, inflorescentiis 
breviora vel saepe eas superantia, rigidiuscula, linearia, longe 
acuminata, basin versus conduplicata et angustata aliter plana, 
12 ad 30 cm longa, 3 ad 9 mm lata; lamina subtus glabra vel saepe 
breviter pubescens, supra glabra. Racemi cylindracei, 3.5 ad 
6 cm longi, circa 2 ad 3 mm in diametro, graciliter pedicellati, 
- flavidi-viridi vel sordide violascentes. Articuli recte disjungen- 
tes, disjunctis apice foramine profunde excavatis, in parte in- 
feriora racemi trispiculati cum spiculis duobus sessilibus her- 
maphroditis a spiculo libere pedicellate sterile et valde reducto 
separatis, in parte superiori racemi normaliter bispiculati, arti- 
culi spiculis sessilibus breviores, glabri. Spiculae sessiles 3.5 ad 
5 mm longae, 1.5 mm latae, rhacheos cavum apice superantes, 
cum callo annuliformi dense breviter barbato; gluma prima 
acuta marginibus, paullum incurvatis, dorso cum pilis rigidulis 
257 
