PHILIPPINE PALMS, I. 
235 
involucrophorum cyathiform, narrowing towards the base and inserted 
at the bottom of its own spathel, flattened, two-keeled and bidentate on 
the side next to the axis; involncre cnpnlar, almost entirely inclosed in 
the involucrophorum, truncate, bidentate on the side of the areola of 
the neuter flower, the areola deep, broadly lunate and sharply bordered. 
Female flowers 4 mm. long; the calyx with a polished base, and deeply 
parted into 3, ovate, externally striolate, acute lobes; corolla as long as 
the calyx, its segments acute, slightly narrower than the lobes of the 
calyx. Fruit seen only in its very young stage, and then ovate and 
stoutly conically beaked, with the scales in 21 longitudinal series, yel- 
lowish, with a rusty, minutely fringed margin, shining, convex and not 
channelled along the middle. 
Mindoko : Bongabong River. No. 3912 M. L. Merritt, March, 1906. 
Very closely related to 0. MerrillU, from which it differs especially in its 
primary and secondary spathes, which are prickly in G. Merritticmus and smooth 
in G. MerrillU. It is also a near ally of G. Zollingerii, which, however, has quite 
differently armed leaf-sheaths. 
Calamus M i ndorensis Bece. n. sp. 
Alte scandens, caudiee vaginato 4 cm. diam. Folia in parte , pinnifera 
circiter 1.5 m. longa; vagina lignosa spinis dimidiato-conicis, minutis- 
simis, sparsis, 3-4 mm. longis armata; petiolo valido brevissimo vel 
subnullo; rhachi in angulo superiori inermi; segmentis aequidistantibus 
utrinque circiter 25, spatio nudo 6-7 cm. longo inter se dissitis, utrinque 
viridibus, auguste elliptico-lanceolatis, basi et apice acutis, plicato-pluri- 
costulatis, superne in costa media et in costulis duabus spinulosis, subtus 
levibus. Spadices late laxeque paniculati;' spathis secundariis auguste 
tubuloso-infundibuliformibus, levibus; spicis foemineis vermicularibus, 
gracilibus, 10-12 cm. longis, utrinque bifarie 20-22-floris, patentibus vel 
horizontalibus, nonnihil arcuatis, exacte ad faucemearum spatharum in- 
sertis. Perianthium fructiferum distincte et si breviter pedicelliforme. 
Fructus globosus, parvus, pisiformis, conspicue rostratus; squamis per 
orthostichas 18-20 ordinatis, nitidis, convexis nec in medio sulcatis, luride 
stramineis, apiculo rubello, margine scarioso minute erosulo-denticulato. 
Semen globosum. 6 
Rather robust and high climbing. Sheathed stem 4 cm. in diameter. 
Leaf-sheaths woody, 3 mm. thick, greenish with a smooth surface, very 
thinly covered with a fugaceous ashy indumentum when young, strongly 
0 This species is closely related to G. Moseleytmus Becc., and belongs to Group 
XV, of my Monograph, characterized as follows: “Leaves prolonged into a long 
and clawed cirrus. Leaf-sheaths not flagelliferous. Spadices usually shorter than 
the leaves, not or slightly flagelliferous at the apex. Spihelets not stalked, 
inserted near the mouth of their respective spathes. Fruiting perianth pedicelli- 
form or almost explanate. Seed with more or less ‘ superficial intrusions of the 
integument or distinctly ruminate, embryo basilar or slightly shifted to one side.” 
