93 



terminal discoid mammillate areola, bearing the remains of the small 

 stigmas. Fruiting perianth not accrescent, but hardened, and with the 

 apices of the petals spreading. 



ffab. Arfak Mts., Angi lakes, 2100-2400 m. <? ? . Fr. Dec. 5951. 



Without doubt rather closely related to Kentia procera, from which it 

 differs in haying the uppermost leaflets truncate and prsemorse-toothed, and 

 in the male flowers having larger anthers, as long as two-thirds of the 

 entire flower. In K. procera the uppermost leaflets are bidentate at apex, 

 and the anthers reach only to about the middle of the petals. The mature 

 fruit of K. Gibbsiana is probably more broadly ovate than that of 

 K. procera. 



K. Gibbsiana is one of the very few palms that belong to the true genus 

 Kentia as understood by me in ' Webbia,' vol. iv. (1913) 143. 



CALAMUS HUMBOLDTIANUS Becc., sp. nov. 



Scandens, caudice vaginato 15-20 mm. diara. ; vaginis flagelliferis, spinis parvis 

 armatis, ocrea inagna, elongata, acuminata, chartacea, 50 cm. et ultra longa, spinulis 

 minutis confluentibus crebre seriatim ornata ; foliis non cirriferis, circiter metralibus ; 

 segmentis paucis per greges paucos approximatis, papyraceis, lanceolatis, breviter 

 acuminatis, unicostulatis, nervis omnibus nudis vel costa media supra prope apicem 

 spinulosa ; segmento terminali profuadissime bilobo ; spadice c? foliis breviori, 

 stricto ; panicula densa, cupressiformi ; sratha exteriori elongata, basi tubulosa, 

 superne aperta ; ramis primariis densissime floriferis, duni floribus ouvistis spica> 

 formibus, subteretibus ; spicis parvis densifloris. 



Scandent, and of moderate size. Sheathed stem apparently 15-20 mm. 

 in diam. Leaf-sheaths (in the small portion seen by me) closely armed with 

 short small prickles. Ocrea extraordinarily large and long, as much as 

 50 cm. in length, very gradually long-acuminate, slightly inflated, enfolding 

 the younger part of the stem, covered with thin fuscous-furfuraceous scurf, 

 chartaceous, exsuccous, rigid, later splitting longitudinally on the outer side 

 and not dissolving into fibres, fugaciously furfuraceous outside and orna- 

 mented all over, and rather closely, with oblique, interrupted, slightly raised, 

 spinulit'erous lines or ridges. Leaf-slieatli flagella slender and very long, 

 armed, but not very regularly, with ternate or quinate claws, intermingled 

 with smaller scattered prickles. Leaves non-cirriferous ; in one specimen 

 about 1 m. long on the whole ; the petiole alone 35 cm. long, almost 

 biconvex, slightly prickly, and with obtuse margins ; rhachis smooth, 

 bifaced, with an acute salient angle above, and armed beneath, at first, with 

 quinate and higher up with ternate claws. Leaflets very conspicuously 

 approximate into very few distant groups (3 in the specimen at hand) 

 with long vacant spaces of rhachis interposed ; in one specimen the leaflets 

 are 7 on each side of the rhachis, of which 8 (4 on each side) form a 

 basal group, and 7 (3 on each side with a deeply bilobed apical one) form 

 the terminal group ; between these two main groups is another intermediate 



12 



