2o6 systematic enumeration of the species of calamus. 
longae) spicis numerosis disticis crassiusculis 7-8 cent, longis curvulis 
onustae, spathis secundariis tubulosis apici parum ampliatis dense 
aciileolatis, spathellis brevissimis concavo-cochleariformibus integri s 
truncatis vix acutis, decidiie furfuraceis.— C. densifloro valde affinis, 
differfc praecipue inflorescentiis valde elongatis et spathis primariis 
et secundariis dense spinulosis. 
Singapore (Ridley). 
65. Calamus LURIDUS Becc. . . . Malayan Peninsula. 
66 . Calamus delicatulus Thw Ceylon. 
67. Calamus Helferianus Kurz. . Tenasserim?; Andamans ? 
68. Calamus nicobaricus Becc Nicobars. 
69. Calamus salicifolius Becc. sp. n. — Caespitosus, 1-3 metr. 
altus, caudice gracili 6-7 mill, diam,, vaginis flagelliferis nudis vel 
sparse spinis parvis rectis armatis ; frondes paripinnatae breves, 20-30 
cent, longae, segmentis paucis remote fasciculatis, lanceolatis, parvis, 
rigidis, utrinque pallide viridibus, 5-9 cent longis, 8-15 mill, latis, 
costa media in pagina superiore spinulis acicularibus 1-3 erectis prae- 
dita, in pagina inferiora minute puberulo^papillosis, marginibus re- 
mote et patule spinuloso-ciliatis, segmentis apicalibus minoribus e basi 
omnino liberis ; spadices ? erecti, parvi, 25-35 cent, longi, spicis parvis 
brevibus (1-2 cent, longis) curvulis, fructibus parvis globosis abrupte 
rostratis, perianthio basi calloso breviter pedicelliformi suffultis, 
semine irregulariter globoso, superficie inaequali, albumine aequabili. 
Lower Cochinchina (Pierre No. 4853). 
F . — Leaflets narrow or rather large. Fruiting perianth dis- 
tinctly pedicelliform. 
70. Calamus tenuis Roxb. — C. Royleanus 
Lour. — C. Heliotropium Ham. 
71. Calamus horrens B 1 . . . . 
72. Calamus tetradactylus Hance 
73. Calamus diffusus Becc. 
74. Calamus Walkerii Hance 
75. Calamus bacularis Becc. 
76. Calamus Rotang Linn. — C. Roxhurghii 
Roxb,— C. Scipionum Lamk 
77. Calamus Brandish Becc. 
78. Calamus Feanus Becc. 
79. Calamus, acanthospathus Griff.- C. 
Griff.— C. amarus 
, N. India. 
Java. 
. China. 
, Singapore. 
China. 
Borneo. 
Griff.— C. monoU 
S. India ; Ceylon. 
S. India. 
Tenasserim. 
montanus T. And. 
— N. E. India. 
Group V\.—^Rachis of leaves not produced into a cirrus. Leaf» 
sheaths flagelliferous or not. Primary spathes very long, at first 
