THE PALM>S OF [ililTISH INDIA AND CEYLON. 221 



Group II. — Leaflets lunnerous, elongate. Priraaiy spathes 

 elongate-tubular, more or less lacerate in their upper part. Fruit- 

 ing perianth explanate. Involucrophorum short, not pedicelliforni. 

 Seed (wiiere known) witli equable albumen and basilar 

 embryo : 



a. Spikelets not inserted at the bottom of their respective 

 spathes and therefor not or very shortly pedicellate : 



* Kot scandent. Spadix not flagelliform, and armed 

 only with straight spines. 



3. C. arboresceus. 



** Scandent. Spadix flagelliform, clawed on the axial 

 parts between the partial inflorescences. 



4. 0. longisetus. 



5. C. thiuaitesii. 



6. C. leptospadix. 



Ii. Spikelets inserted at the bottom of their respective spathes 

 and provided with a distinct pedicellar jDart. 



7. C. dilacerahis. 



Group III. — Leaflets very few, pinnate, digitate or radiate. 

 Primary spathes very narrow and elongate-cylindric, very closely 

 sheathing. Leaf-sheaths flagelliferous. Spadices (male and female) 

 simply decompound^ very slender and flagelliform ; partial inflore- 

 scences and spikelets inserted at the mouth of their respective 

 spathes (not with a pedicellar part). Fruiting perianth explanate. 

 Involucrophorum not pedicelliforni. Seed with ecjuable albumen 

 and basilar embryo. 



8. C. pachystemonus. 



9. C. dujitat'us. 

 10. G. radiat'us. 



Group IV. — Leaves pinnate. Leaf-sheaths provided in the scan- 

 dent species (when not bearing spadices) with a long-clawed flagel- 

 lum ; in the non-scandent species the flagellum rudimentary or none. 

 Primary spathes very elongate-tubular, closely sheathing, sometimes 

 split longitudinally in their upper part, but never entirely opened 

 longitudinally and laminar. Spikelets inserted at the mouth of 

 theii" respective spathes. Involucrophorum not pedicelliforni. 

 Seed (where known) not ruminate ; embrj^o basilar. 



a. Fruiting perianth (where known) explanate or subcal- 

 lous at the base, not or slightly pedicelliforni. 



f Leaves pinnate with few often broad-lanceolate or 

 elliptic or more rarel}' elongate, 3-5-costulate 

 leaflets, all the costse reaching the apex. 

 * The two terminal leaflets highly connate. 

 Li. C . jloribund'us . 

 ** The two terminal leaflets free at the base. 

 12. C. kingianus. 



