20,4 Merrill: Noteworthy Philippine Plants, XVII 467 



A species somewhat resembling Lasianthus moms Elm., but 

 differing distinctly in its indumentum and in its calyx lobes. 

 It differs from Lasianthus acuminatissimus Merr. in its indumen- 

 tum, wider leaves, very different stipules, and conspicuous, 

 persistent bracts and bracteoles. 



LASIANTHUS ACUMINATISSIMUS sp. nov. 



Frutex circiter 1 m altus, ramis ramulisque minute et obscure 

 adpresse hirsutis; foliis chartaceis, anguste lanceolatis, 9 ad 

 20 cm longis, 1.5 ad 3 cm latis, sursum sensim angustatis, ten- 

 uiter caudato-acuminatis, basi acutis, supra olivaceis, glabris, 

 subtus ad costa et nervis reticulisque breviter pubescentibus, 

 nervis utrinque circiter 7, curvato-adscendentibus, perspicuis; 

 floribus paucis, fasciculatis, sessilibus, 5-meris, ebracteolatis, 

 calycis breviter 5-dentatis, coroUae tubo cylindrico, 5 mm longo, 

 intus villoso, lobis oblongis, 3 mm longis, intus villosis. 



An erect shrub about 1 m high, the branches and branchlets 

 terete, brownish or olivaceous when dry, minutely and obscurely 

 appressed-hirsute with short hairs, the ultimate branchlets 1.5 

 to 2 mm in diameter. Leaves chartaceous, narrowly lanceolate, 

 9 to 20 cm long, 1.5 to 8 cm wide, gradually narrowed upward 

 to the slenderly caudate-acuminate apex, the base acute, the 

 upper surface olivaceous, glabrous, somewhat shining, the lower 

 surface shortly pubescent on the midrib, nerves, and reticula- 

 tions, the indumentum yellowish green; lateral nerves about 7 

 on each side of the midrib, curved-ascending, distinct on both 

 surfaces as are the reticulations ; petioles more or less pubescent, 

 5 to 7 mm long; stipules linear to linear-lanceolate, pubescent, 

 nearly as long as the petioles, deciduous. Flowers few, white, in 

 axillary sessile fascicles, 5-merous. Calyx 3 mm long, slightly 

 pubescent, the teeth triangular, acute, 0.5 mm long, their margins 

 slightly ciliate. Corolla tube cylindric, somewhat pubescent 

 externally, about 5 mm long, glabrous inside in the lower 

 half, villous in the upper half, the lobes oblong, 3 mm long, villous 

 inside. Anthers oblong, 2.2 mm long. Disk cushion-shaped, 

 1 mm long, glabrous. Style 6 mm in length. 



Luzon, Bontoc Subprovince, Mount Caua, Bur. Sci. 38058 

 Ramos & Edano, March, 1920. In the mossy forest, altitude 

 about 1,800 meters. 



A species belonging in the general group with Lasianthus 

 morus Elm., well characterized, however, by its elongated, nar- 

 rowly lanceolate, caudate-acuminate leaves. 



