pi 
pio 
6 ANNALS OF THE ROYAL BOTANIC GARDEN, CALCUTTA. C. concolor. 
than the spathels; the corolla is nearly 3 times as long as. the calyx, is parted 
below the middle into 3 triangular acute or acuminate segments, and is entire and 
ventricose in its lower part; the stamens have the filaments connate with the un- 
divided part of the corolla and are provided with a short free portion at its throat 
and have rather well formed, but sterile, narrowly sagittate anthers; ovary globose, 
covered with large, suborbicular, fimbriate scales ; style almost none; stigmas elongate 
trigonous, subulate thickish, strongly lamellose on inner side, spreading and recurved 
during the anthesis. Neuter flowers inserted through a very short pedicel laterally 
to the female, inside the lowest (the involucrophorum) of the two spathels; they 
are lanceolate, more or less trigonous, acute, 5 mm. long, 1—5 mm. wide; the 
calyx short with 3 acute teeth; the corolla much longer than the calyx; petals 
lanceolate, acute; stamens bave the filaments adnate to the base of the petals and 
with a short free part; authers linear sagittate, well formed but apparently 
sterile; rudiments of the ovary very minute, papilliform. The mature Fruit 
unknown. 
Hanrrar.—Java: in Bantam on the mountains on the limestone rocks near 
Kuripan (Res. of Buitenzorg) and in the forests in Wijnkoops Baai or Palabuan 
Ratu (Miquel, Blume). From this last locality I have a specimen collected by the 
late Dr. Boerlage. 
OnsERVATIONS.—]t is characterized by its slender stem covered with sheaths 
thickly armed with slender unequal spines; by the cuneately rhomboidal leaflets 
powdery or mealy-glaucous beneath and by the reflexed spadices borne on very 
slender spinous elongate pedicels. 
Prate 1.—Ceratolobus glaucescens Bl. Portion of the spadix-bearing stem ; 
one leaf wanting only its basal part and a separate spadix with half the spathe 
removed, to show the female panicle; from a plant cultivated at Buitenzorg., 
Upper part of a leaf-sheath with a spadix “in situ:” from a specimen. collected 
by Dr. Boerlage at Wijnkoops Baai. 
2. CERATOLOBUS concoLor Bl. Rumphia, ii, 165, t. 120 f. 1; Mig. Fl. Ind. 
Bat. m, 74. 
DzscgiPTION.— Very slender. Sheathed stem 6—9 mm. in diameter. Leaf-sheaths 
distinctly puckered below the petiole, rendered more or less scabrid by very 
minute tubercled spinules; the mouth truncate, with a narrow membranous border, 
produced into, an axillary, short, triangular, acute glabrous or slightly hairy ligula. 
Leaves 40—60 cm. long in the pinniferous part; the petiole short, 4—5 cm. long 
or at times more, subterete, smooth or scabrid, unarmed or provided with a few 
straggling straight spines on the dorsum; rhachis obsoletely trigonous, scantily 
armed on the dorsum with distant solitary claws; the cirrus very slender, very 
minutely and regularly clawed. Leaflets few, 4—5 on each side of the rhachis, all 
about the same size, 12—15 cm. long, 3—5 cm. wide, alternate or subopposite, 
papyraceous, light-green and dull on both surfaces, elongate-rbomboidal or cuneately 
rhomboidal, narrowing from, or from a little above, the middle to an acute non- 
ansate base; the upper margins irregularly undulate-crenate, the lobules very 
minutely setose-aristate or muticous; the apex caudiculate or prolonged into a 
