127J Palmae. 127 



sheathing sometimes split longitudinally in their upper part, but never entirely 

 opened longitudinally and laminar. Spikelets inserted at the mouth of their 

 respective spathes. Involucrophorum not pedicelliform. Seed (where known) 

 not ruminate; embrvo basilar. 



A. Secondary spathes, spathels and involucra conspiciously scabrid. 



24. C. ruvidus, 25. scabridulus, 26. muricatus, 27. zonatus. 28. C. radulosus, 

 29. rugosus. 



E. — Secondary spathes, spathels and involucra not or very slightly 

 scabrous. 



(1) Fruiting perianth (where known) explanate or subcallous at the base T 

 not or slightly pedicelliform (distinctly pedicelliform in (J. dioicus). 



t Leaves simply furcate. 



30. C. flabellatus. 



fj Leaves pinnate with few often broad lanceolate or elliptic or more 

 rarely elongate, 3 — 5-costulata leaflets, all the costae reaching the apex. 



* The two terminal leaflets higbly connate, acute or acuminate. 



31. C. javensis, 32. filiformis, 33. corrugatus, 34. papuanus, 35. filipendulus, 

 36. gonospermus, 37. floribundus, 38. interruptus. 



** The two terminal leaflets slightly connate or free at the base, acute 

 or acuminate. 



39. C. dioicus, 40. C- schistoacanthm, 41. Kingianus, 42. Muetterii. 



*** Leaflets truncate and praemorse at the apex: the two of the terminal 

 pah* highly connate. 



43. C. caryotoides- 



j jy Leaves with numerous leaflets, these narrow, often fascicled, usually 

 gradually decreasing towards the apex, the two of the terminal pair the 

 smallest and free at the base. 



* Fruiting perianth entirely explanate. 



44. C. minimalis, 45. siainensis, 46. concinnus, 47. mollis, 48. Meyenianus, 

 49. Blancoi, 50. rivalis, 51. Metzianus, 52. pseudo-rivalis, 53. pseudo-tenuis, 

 54. Hookerianus, 55. nematospadix, 56. australis, 57. Moti, 58. radicalis, 59. zebrinus* 

 60. semdatus. 



** Fruiting perianth slightly callous at the base and more or less pedi- 

 celliform. 



O Ocrea not extraordinarily large. 



61. C- Reimvardtii, 62. heteroidens, 63. opacus, 64. luridus, 65. sabensis, 

 66. delicatulm, 67. Helfer ianus, 68. nicdbarieus. Apparently related to the species 

 of this group are the following: — 69. C. myriacanthus, 70. pygmaeus, 

 71. barbat us. 



OO Ocrea elongate, very large. 



72. C. vestitus, 73. ralumensis, 74. macrochlamys, 75. gogolensis. 



Fruiting perianth distinctly pedicelliform. 



f Leaflets numerous, narrow, equidistant, gradually becoming smaller 

 towards the apex of the leaf. 



76. C. tenuis, 77. horrens, 78. Godefroyi, 79. Rotang, 80. Walkerii, 81. Fabern, 

 82. tonkinensis, SS.Delessertianus. 



ff Leaflets not very numerous, and distinctly fascicled. 



84. C. Brandisii, 85. salicifolius, 86. tetradactylus. (C. salicifolius perhaps 

 better placed in Group XIII by its diminutive terminal leaflets.) 



ff-j" Leaflets more or less inequidistant, but not fascicled, many-nerved. 



