310 
MERRILL. 
differs especially in its smaller size, and in its smaller entire leaves which 
are nearly glabrous on the upper surface, not prominently ciliate with 
long hairs. In habit and general appearance it approximates some species 
of Elatostema, from which the specific name. 
BEGONIA OBLONGATA sp. nov. § Petermannia. 
Species B. contractae Warb. affinis, differt foliis angustioribus, 
valde oblique cordatis, capsulis majoribus, circiter 15 mm longis. 
An erect, glabrous, sparingly branched, succulent herb up to 
60 cm in height, the stems often somewhat prostrate below, the 
nodes sometimes emitting rootlets. Leaves membranaceous, 
green, oblong to oblong-lanceolate, 8 to 12 cm long, 1.2 to 3 cm 
wide, often somewhat falcate, gradually narrowed above and 
slenderly acuminate, the base very strongly inequilateral, cordate, 
the sinus lateral, the lower lobe very much larger than the upper 
one, usually about 2 cm wide, rounded-angular, the upper lobe 
acute or slightly rounded, about 5 mm wide, the sinus narrow, 
acute, the lobes not overlapping ; basal nerves 1 or 2 in the narrow 
lobe, 4 or 5 in the broader one, radiate, the lateral ones above 
the base 2 to 4, ascending, anastomosing, the margins rather 
prominently but irregularly toothed; petioles 1.5 to 3 cm long; 
stipules membranaceous, oblong-lanceolate, acuminate, about 1 
cm long. Inflorescence terminal, slender, 6 cm long or less, 
divaricately branched, few-flowered, the basal flower female, 
the upper ones male. Male flowers : Sepals 2, suborbicular, pink, 
rounded, about 4 mm in diameter, slenderly 7-nerved. Petals 
none. Stamens 30 to 35; anthers obovoid, slightly retuse, 0.8 to 
1 mm long, the filaments less than 1 mm in length. Female 
flowers not seen. Capsules ovoid, truncate, about 15 mm long, 
15 to 17 mm wide, equally 3- winged, the outer angles of the wings 
subacute, the base broadly rounded. 
Mindanao, District of Zamboanga, mountains back of Zamboanga, Mer- 
rill 8166 (type) 8175, December 6, 1911, in damp shaded ravines, altitude 
100 m and above. 
A species manifestly allied to Begonia contracta Warb., but differing in 
a number of characters, especially in its relatively narrow leaves and its 
much larger capsules. 
BEGONIA MACGREGOR! I sp. nov. § Petermannia. 
Species ut videtur B. cumingii A. Gray affinis, differt floribus 
masculinis multo minoribus, partibus junioribus ramisque longe 
ciliato-setosis. 
An erect or ascending sparingly branched plant 20 to 100 cm 
high, the stems with numerous, long, slender, brownish, ciliate- 
