NOTES ON PHILIPPINE PALMS, II. 
633 
m, very abundant locally and the only species of the genus in the locality 
according to the collectors. 
Prospectus of the varieties of Calamus dimorphacanthus : 
1. Ligule membranous, brittle, armed with few spinules, leaflets very narrow, 
bristly only on the mid-costa above, margins ciliated with spreading, spinuli- 
form hairs. Fruit 8 to 10 mm long forma typica 
2. Ligule very long (as much as 15 cm) rigid, very densely armed with horizontal, 
more or less seriate spines ; leaflets very numerous, narrow, bearing above, 
on the mid-costa, and on one nerve on each side of it, several subspiny 
bristles; margins ciliated with rather robust spreading spinules. 
var. montalbanicus. 
3. Ligule relatively short, bristly-spinulous ; leaflets very closely set, very stiff 
and thickish, narrowly lanceolate, furnished with conspicuous subspiny 
bristles only on the mid-costa above, margins ciliated with spreading 
spinules. Fruit larger than in type (13 mm long, 10 mm broad). 
var. zambalensis. 
Calamus halconensis Becc. sp. nov. 
Scandens, mediocris, vaginis densissime spinis laminaribus, inaequa- 
lib us, creberrime plus minusve seriatis ac basi confluentibus armata; 
ligula rigide elongata, densissime spinoso-hispida. Frondium petiolo 
breviusculo (7-8 cm longo), spinis inaequalibus armato; parte pinnifera 
circiter 1 m longa; cirro validissimo aculeis reduncis robustis semiver- 
ticillatis armato ; segmentis numerosis, aequidistantibus, ensiformibus, 20- 
25 cm longis, 13-15 cm latis, subtus levibus, supra in costa media et secus 
nervos 2 setosis ; marginibus crebre adpresseque ciliato-spinulosis. Spadix 
fructifer circiter 30 cm longus, spathis levibus; inllorescentiis partialibus 
parvis et parce ramosis. Fructus ovati vel subobovati, obtusissime mucro- 
nati, una cum perianthio fructifero, distincte pedicelliformi, 17 mm 
longi, 12 mm lati; squamis per orthostichas 12 ordinatis, nitidis, luride 
stramineis, apice rotundatis, in medio profunde sulcatis; semine ovato, 
10.5 mm longo, 7 mm lato, grosse alveolato-sulcato et in dorso longitud- 
inaliter sculpto. 
Scandent, of moderate size. Leaf-slieaths very densely armed with 
very unequal, laminate, more or less closely seriate, confluent spines; 
ligule rigid, 5 to 6 cm long, entirely covered, in one specimen, with very 
rigid, needle-like spiculae of unequal length. Leaves with the petiole 
armed with the same kind of unequal spines as in C. dimor-phacantlius , 
7 to 8 cm long, the pinniferous part apparently about 1 m in length, 
terminated by a very robust, strongly clawed cirrus; leaflets numerous, 
equidistant, ensiform, or very narrowly lanceolate, 20 to 25 cm long, 13 
to 15 mm broad, smooth underneath, sprinkled above on the mid-costa 
and on one nerve on each side of it, with not very rigid bristles ; margins 
rather closely and appressedly spinulous. Fruiting spadix about 30 cm 
long, with smooth spathes, and very few, small, slightly branched, partial 
inflorescences, of which the lowest are only 5 cm in length and have 
very few spikelets. Fruit ovoid or subobovoid, obtusely beaked, 17 mm 
