95 



is easily distinguishable by its relatively short leaves, having few, lanceolate, 

 grouped leaflets, glossy and smooth on both surfaces ; by the sheaths 

 prolonged into an excessively long, slightly inflate ocrea, which is orna- 

 mented with oblique spinuliferous slightly raised ridges ; by the strict 

 long-pedicelled spadix with a very densely flowered panicle ; and by the 

 primary spathe having an elongate, thinly-membranous, lacerate, externally 

 prickly limb. 



CALAMUS ARFAKIANUS Becc., sp nov. 



Gracilis, scandens, caudice 5-10 mm. diarn., vaginis flagelliferis, spinis gracilibus, 

 interdum brevissimis, parce armatis, in ore et in ocrea brevi barbatis ; foliis non 

 cirriferis, brevibus, petiolo brevissimo, segmentis paucis per greges paucos inter se 

 remotos approximatis, lineari-lanceolatis, subulato-acuminatis, tenuiter papyraceis, 

 unicostulatis, nervis secundariis utrinque 1-2 tenuibus, costa media et nervis omnibus 

 levibus; segmentis intermediis circiter 20 cm. longis, 15-20 mm. latis, duobus 

 terminalibus basi breviter connatis vel fere liberis; spadicibus valde elongatis et 

 flagelliformibus ; spathis elongatis arete vaginantibus ; spadicis 3 ramis prinuiriis 

 paucis, remotis, spicas numerosas detiexas f erentibus ; spicis majoribus 15-18 mm. 

 longis, floribus utrinque 13-15 fere contiguis ; spatbellis concavis, bracteiformis ; 

 spadicis $ ramis primariis paucis, remotis ; spicis majoribus 4-5 cm. longis, floribus 

 utrinque 8-10 ; fructibus late ovato-ellipticis, abrupte mucrouatis, 15 mm. diam. ; 

 scininLs albumin e homogeneo. 



IScandent and very slender. Sheathed stem 5-6 or at most 8-10 mm. in 

 diam. Leaf-sheaths flagelliferous, not or only slightly gibbous above, at 

 times almost, smooth, and only slightly (and very minutely) tubercled- 

 spinulous in their upper part; but in some specimens rather densely covered 

 with scattered or slightly confluent bristle-like spines, which become closer, 

 considerably longer, and more hair-like, near and on the margins of the 

 mouths of the same leaf-sheaths, and of the ocrea, which because of them 

 looks bearded. Leaf-sheath flagella very slender and long, and armed 

 irregularly with very minute scattered claws. Leaves non-cirriferous, short, 

 40-60 cm. long; petiole very short, 2-3 cm. long at most; rhachis fuga- 

 ciously rusty-furfuraceous like the petiole, armed beneath with unequal, 

 rather long-tipped, scattered or ternate claws. Leaflets few, 15-19 in all, 

 very irregularly set, usually approximate in three groups separated by long 

 vacant spaces of rhachis; they are narrowly lanceolate or linear-lanceolate, 

 gradually subulately acuminate, thinly papyraceous, almost shining and about 

 the same colour on both surfaces ; have the mid-costa very sharp above, and 

 one, or at times two slender secondary nerves on each side of it ; mid-costa 

 and nerves quite naked and smooth on both surfaces ; transverse veinlets 

 rather sharp and not very crowded ; the margins have only a few distant, 

 almost inconspicuous, appressed spinules, closer and more distinct in the 

 apical part ; the leaflets of the interme iiute and lower groups are about 



