A REVISION OF PHILIPPINE PIPERACEAE. 
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6. Limb ovate-elliptic, acute and slightly longer on one side at the base, 
of the same width on both sides of the central nerve, 11 to 15 cm 
long, 5 to 9 cm wide 77. P. glabrispicum 
6. Limb ovate-elliptic, subacute and of the same length on both sides 
at the base, distinctly hot of the same width on both sides of the 
central nerve, 11 to 15 cm long, 5 to 9 cm wide 78. P. nigrum 
5. Raehis pilose. 
6. Limb oblong-ovate, obtuse at the base, 12.5 cm long, 4.7 cm wide; 
spike shorter than the limb 79. P. pilispicum 
6. Limb ovate, acute at the base, 9 cm long, 4.7 cm wide; spike several 
times longer than- the limb - 80. P. davaoense 
3. Flowers hermaphrodite; limb elliptic, acute at the base, 11 cm long, 5 
cm wide .... 78. P. nigrum f3 trioicum 
1. Berry free and stipitate. 
2. Limb of leaf multinerved and quite glabrous, ovate-elliptic, subacute at the 
base, rather long-acuminate at the apex, up to 8.5 cm long, 4.5 cm wide. 
81. P. pulogense 
2. Limb multiplinerved. 
3. Limb quite glabrous or very sparingly hirtellous on the central nerve 
beneath. 
4. Bract orbicular and glabrous. 
5. Limb oblong-ovate, obtuse or eordulate at the base, up to 10 cm long, 
and 3.2 cm wide :X:. .. 82. P. apoanum 
5. Limb narrowly oblong-ovate, obtuse and slightly inequilateral at the 
base, 11 cin long, 1.8 cm wide... ... -Ml 83. P. negrosense 
5. Limb oblong, equilateral and obtuse or acute at the base, 11 cm long, 
3.5 to 4 cm wide. 84. P. densibaccum 
5. Limb elliptic-lanceolate, attenuate in its lower portion, equilateral and 
acute at the base, up to 12 cm long and 3.5 cm wide. 
85. P. dipterocarpinum 
4. Bract rounded-obovate, glabrous ; limb ovate or oblong-ovate, rounded or 
subrounded at the slightly inequilateral base, 11.5 cm long, 5 to 7.5 
cm wide i*ft 86. P. dagatpanum 
4. Bract transversely elliptic, glabrous; limb elliptic-lanceolate, attenuate 
in its lower portion and acute at its equilateral base, 9 to 10 cm long, 
3 to 3.5 cm wide , 87. P. pa/ucinerve 
4. Bract orbicular and ciliate on the margin; limb ovate-oblong, cordate at 
the base, up to 12 cm long and 4 cm wide 88. P. tenuirameum 
3. Limb glabrous or sparingly hirtellous on the central nerve of the upper 
surface, more or less pubescent on the lower surface. 
4. Berry globose or subglobose. 
5. Bract orbicular, glabrous, 
6. Limb oblong-ovate, eordulate or obtuse at the base, up to 11.5 cm 
long and 4.5 cm wide 89. P. marivelesanum 
6. Limb ovate, rounded at the base, attenuate at the apex, up to 10.5 
cm long and 5.2 cm wide....... 90. P. basilanum 
6. Limb ovate, rounded at the base, long-acuminate at the apex, 12 cm 
long, 7 cm wide 92. P. caninum var. sablanum 
6. Limb elliptic-lanceolate, acute at the base, 13.5 cm long, 6 cm wide. 
91. P. Hallieri 
5. Bract obovate-rounded, glabrous ; limb ovate-lanceolate, acute at the 
base, up to 11.5 cm long and 5.5 cm wide. 
92. P. caninum var. glabribracteum 
