NOTES ON PHILIPPINE PALMS, II. 631 



back, terminated by a short triangular point; the lowest partial inflo- 

 rescences are the largest, they are 7 to 8 cm long with only 3 or 4 spikelets 

 on each side; secondary spathes infundibuliform, truncate at the mouth 

 and slightly prolonged at one side, furnished at the summit with a few 

 long stiff bristles; spikelets short and rather thick, 2 to 3.6 cm long, with 

 two series of 6 or 7, assurgent, not flatly bif arious flowers ; spathels very 

 shortly infundibuliform, embracing the involucre, involucrophores and 

 involucre (which are very much alike) very shallowly cupular and 

 orbicular; areola of the neuter flower depressedly lunate and sharply 

 bordered. Female flowers conical, 5 mm long and 5 mm broad; the form 

 of the flower being given by the calyx, which has a very broad, flat, callous 

 base, and a very contracted, shortly 3-toothed mouth; the teeth about as 

 lonff as the small segments of the corolla; stigma small, triangular, 

 spreading. 



Luzon, Province of Laguna, Mount Banajao, Loher 7088, February, 1906, 

 (Herb. Kew.). N. v. saba-ang. 



A very singular species, easily distinguishable by its short, straight, rigid 

 female spadix, with the spathes fringed at the mouth by numerous stiff subspiny 

 bristles and also by its large leaves and lanceolate leaflets. II would seem by 

 its short spadix, with its gradually decreasing subinflated spathes, to belong to 

 the group of G. siphonospathus, but it has a quite peculiar habit. The spadix 

 is also very much like that of C. dimorphacanthus, but the leaves are quite 

 different, and are very similar to those of G. ornatus. The spadix was detached, 

 nevertheless I entertain little doubt but that it belonged to the same plant as 

 the leaves described above. 



Calamus dimorphacanthus Becc. in Records Bot. Surv. India 2: 214 et in 

 Ann. Bot. Gard. Calcutta 1 1 : tab. 219. 



Specimens corresponding to the type were collected by A. D. E. Elmer on Mount 

 Santo Tomas (Tonglon), Province of Benguet, Luzon, in May, 1904, No. 6238. 



In these specimens the spadix bears almost mature fruits not differing 

 from those of the type; but the partial inflorescences are more robust, the 

 largest being 12 cm in length, and with the lowest spikelets forked; the 

 primary spathes are fugaciously rusty-furfuraceous, of these the lower 

 are more or less prickly, the upper smooth. The fruits are 8 to 10 mm 

 long. The leaflets are narrow, and are furnished with rather long bristles 

 on the mid-costa above; their margins are ciliate with rather spreading 

 hairs. 0. dimorphacanthus appears to be a very polymorphous species, 

 including several distinct varieties or subspecies. 



Calamus dimorphacanthus var. montalbanicus Becc. var. nov. 



The specimen upon which I have established tbis variety is remarkable 

 for the extraordinary spinescence of the leaf-sheaths and especially of 

 the ocrea, which moreover, is extraordinarily developed. " The sheathed 

 stem is 3 cm in diameter; the leaf-sheaths are densely armed with laminate 

 flexible, schistaceous or almost black, unequal spines, the largest being 

 20 to 25 mm long; the ligule is 15 cm long (in one specimen), papyraceous 



