NOTES ON PHILIPPINE PALMS, II. 621 



with a blunt apex, 20 cm long and 20 to 22 nun in diameter, squarrose 

 or with the larger bracts or spathes not immersed in wool, very broadly 

 ovate and terminated by a free, triangular, not appressed, point; this is 

 wry finely, neatly, and striatelv veined longitudinally. Flowers L3 mm 

 long, hermaphrodite, solitary in the axils of the bracts from which the 

 summit of the corolla emerges; the flowers arc not immersed in wool, 

 hut are placed between and tightly embraced by two, special, elongate. 

 concave bracteoles which are acutely carinate on the back and are covered 

 on the carinae and at the summit with furfuraceous, appressed paleolae 

 (not woolly hairs) ; calyx cyathiform. parted to the middle into 3, broadly 

 ovale, obtuse, concave lobes, very finely striate-veined; corolla about 3 

 times as long as the calyx, parted to about the middle into :> oblong 

 segments. Fruit 



Palawan, near Iwahig, For. Bur. ',lS-'> Curran, May, 190G. 



Of this very distinct species I have seen fragments of the stem and of one 

 leaf and a few detached spikes with flowers in an advanced stage. It is a species 

 very well characterized by its thick, squarrose, glabrous spikelcts, the bracts and 

 the flowers not being immersed in wool. In this respect Korthalsia squarrosa 

 closely resembles K. robusla Bl., which has the same kind of spikes and flowers. 

 The spikes with squarrose spathes are quite different from I he usual form in 

 Korthalsia, being very similar to those of some species of Zalacca. 



To K. squarrosa apparently belongs a sterile specimen collected by Elmer D. 

 Merrill, No. 538-'/, on Balaha.c Island, although this has much broader leaflets 

 than those of the specimen described above; but this in Korthalsia is a very 

 variable characteristic, as the breadth of the leaflets seems to vary on the same 

 plant with its age and with their position along the stem. 



In the above-mentioned specimen collected by Merrill, the leaf is about 70 

 cm long in the pinniferous part; the petiole is 10 cm long; the rachis is irreg- 

 ularly armed with small alternate claws; the leaflets are few, 6 or 7 on each 

 side, rhomboid, distinctly ansate, especially the upper ones, 15 to 20 cm Ion-;, 8 

 to 10 cm broad; the ocrea is truncate at the summit, open on the ventral side, 

 12 cm long, and armed with very slender, needle-like, horizontal spiculae, 10 to 

 15 mm long. 



Vidal 4066, collected at Sorsogou, Luzon, is also a Korthalsia, but the spe- 

 cimen of this number in my herbarium is indeterminable, as it consists only 

 of the intermediate portion of a leaf which resembles that of Merrill 5884, but 

 larger and with a shorter petiole; probably Vidal's specimen belongs to a species 

 differing from K. squarrosa. 



CALAMUS Linn. 



Calamus Hookerianus Becc. in Ann. Bot. (bird. Calcutta 11: tab. 70. 



I have identified with this species a Calamus, For Bur. 10630 Curran, collected 

 at about 200 m elevation on the Adumay Hills, Province of Albay, Luzon, 

 June, 1908. 



The above-mentioned specimen exactly agrees with plate 70 of my monograph; 

 the leaflets, however, of the type specimen bear bristles on three nerves on the 

 upper surface, but beneath only on the mid-costa, while in Curran's specimen 

 three nerves on both surfaces are bristly. 



The native country of C. Hookerianus was not previously known, the type 

 specimen in the Herbarium at Kew being of uncertain origin; now that we 



