May 30, 1013] Philippine Ptqkum 1623 



Type specimen number 11828, A. D. E. Elmer, Todaya 

 (Mt. Apo), District of Davao, Mindanao, September, 1909. 



Gathered from sparsely wooded nearly precipitous bluffs 

 along the Bururing river at 2750 feet altitude. "Balla" is 

 the Bagobo name. 



Pygeum apoense Elm. n. sp. 



Large trees with spreading limbs; trunk 15 dm. thick, 

 25 m. high; main branches from the middle and widely 

 spreading, rebranched; bark mottled, smooth or lenticelled 

 on the stem, quite thick, reddish brown beneath the epid- 

 ermis; wood moderately hard, whitish on the outside, red- 

 dish toward the center, without odor or taste; twigs thick, 

 short fulvus pubescent, the older portions nearly glabrous, 

 lenticelled and with scar connections. Leaves rigidly coria- 

 ceous, spreading horizontally, shining deep green and gla- 

 brous on the upper conduplicate side, much lighter green 

 beneath, drying brown, entire, oblong to elliptic, the average 

 blades 15 cm. long by 6 cm. wide, apex rounded or obtuse, 

 base similar although the lower one half is usually more 

 tapering than the apical portion, alternatingly scattered, 

 beneath finely puberulent, eglandular at base; midvein stout 

 beneath, fulvus pubescent even so in the groove along the 

 upper side, the 10 lateral yellowish nerves oblique, less 

 prominent but similar in pubescence; bud bracts triangularly 

 ovate, 5 mm. long or less, hairy on the back only; petiole 

 5 to 8 mm. long, 3 mm. thick, densely fulvus pubescent. 

 Inflorescence 5 to 8 cm. long, erect, axillary, pale green 

 and densely fulvus tomentose, the usually solitary spike flower 

 bearing from near the base where it is subtended by a series 

 of imbricating bracts; outer or larger bracts 6 mm. long, 

 hairy on the outside and at the 2-toothed apex; pedicel sim- 

 ilary pubescent, 5 mm. long, subtended by a linear 3 mm. long 

 externally hairy bract; flowers deciduous, slightly frngrant; calyx 

 brownish, obconic, 5 to 7 mm. long, nearly as wide across 

 the apes, densely covered on the exterior with olivaceous 

 woolly hairs; segments about 10, on an average 2 mm. long, 

 diverse in shape, inserted from the calyx rim, similarly 

 pubescent on the outer side and usually on the exposed inne *, 



