342 
The Philippine Journal of Science 
iyi3 
of the inflorescence divided into several very short (3 to 5 cm 
long) fructiferous branchlets, and the fruits are smaller than 
usual (16 to 18 mm in diameter, the seed 12 mm in diameter). 
I do not know if this specimen is to be considered an abnormal 
one, or if it represents a constant characteristic; in the latter 
case it ought to be considered as a species distinct from Corypha 
elata. 
METROXYLON Rottboell 
METROXYLON RUM PH 1 1 Mart. Hist. Nat. Palm. 3 (1838) 214, 313, 
t. 102, 159; Becc. in Ann. Bot. Gard. Calcutta 12 t. 105. 
Mindanao, Davao District, Todaya, Elmer 11160, local name lumbia: 
Surigao Province, Catel, Merrill 5MS. 
ZALACCA Reinwardt 
ZALACCA CLEMENSIANA Becc. in Philip. Journ. Sci, 4 (1909) Bot. 618, 
Ann. Bot. Gard. Calcutta 12 b t. Jf9. 
Mindanao, Lanao District, Camp Keithley, Mrs. Clemens 1109; Davao 
District, Todaya, Elmer 11879, local name lacaubi. 
PLECTOCOMIA Martins et Blume 
PLECTOCOMIA ELMERII Becc. in Ann. Bot. Gard. Calcutta 12*: t. 22. 
Mindanao, Davao District, Todaya, Elmer 11887. 
KORTHALSIA Blume 
Conspectus of the species. 
a'. Spikes amentiform v?ith very closely crowded flowers and appressed 
spathels. 
b\ Leaf-sheaths produced at the base of the petioles into an inflated 
elongate-elliptic ocrea; leaflets more or less nearly white under- 
neath 1. K. scaphigeroid.es. 
6*. Leaf-sheaths produced at the bases of the petioles into a closely 
sheathing, densely spinous ocrea. 
c\ Slender; leaflets of the upper part of the fertile plant small, 
rhomboidal, green on both surfaces or slightly paler beneath 
than above 2. K. Merrillii. 
c*. Robust; leaflets large, cuneate-rhomboidal or trapezoidal, sharply 
double-toothed, paler beneath than above 3. K. laciniosa. 
a*. Spikes of squarrose appearance, the spathes scarious and not appressed; 
leaves furnished with an elongate, cornet-shaped ocrea which is 
truncate at the apex; leaflets cuneately rhomboidal, white under- 
neath 4. K. squarrosa. 
1. KORTHALSIA SCAPHIGEROIDES Becc. in Philip. Journ. Sci. 4 (1909) 
Bot. 619, Ann. Bot. Gard. Calcutta 12*: t. 67. 
Mindanao, Zamboanga District, For. Bur. 4816 Hutchinson: Butuan Sub- 
province, Agusan River, Merrill 7313. Basilan, For. Bur. 6106 Hutchinson. 
2. KORTHALSIA MERRILLII Becc. in Ann. Bot. Gard. Calcutta 12*: 
t. 81. 
Palawan, Malampaya Bay, Merrill 9410. 
