146 The Philippine Journal of Science ms 
last International Botanical Congress, 8 Planchon’s generic designation 
should be the one to be retained. Gagnepain 0 has clearly shown that 
Landukia Planch, is not generically distinct from Parthenocissus. Landukia 
Planch, has page priority over Parthenocissus Planch., and hence has claims 
to recognition as the valid generic name, for the group under discussion, 
among those botanists who accept the generic lists of nomina conservanda 
adopted by the last two International Botanical Congresses. That Landukia 
should be included in the next list of nomina rejicenda is evident, and I 
prefer to make no new combinations under this generic name at the present 
time. The proper specific name for a common Chinese species, however, 
needs adjustment, as there is no reason whatever for discarding Blume’s 
very descriptive name for the plant now known as Parthenocissus landuk 
Gagnep. Ampelopsis heterophylla Sieb. & Zucc. was published many years 
after Blume’s binomial, and of course does not invalidate Blume’s specific 
name. 
PARTHENOCISSUS HETEROPHYLLA (Blume) Merr. in Philip. Journ. 
Sci. 11 (1916) Bot. 129. 
Ampelopsis heterophylla Blume Bijdr. (1825) 194. 
Cissus landuk Hassk. in Flora 25 (1842) Beibl. 2:39. 
Vitis landuk Miq. Ann. Mus. Bot. Lugd.-Bat. 1 (1863) 90. 
Landukia landuk Planch, in DC. Monog. Phan. 5 (1887) 447. 
Parthenocissus landuk Gagnep. in Bull. Soc. Hist. Nat. Autun 24 
(1911) 15, et in Sargent PI. Wils. 1 (1911) 102. 
Kwangtung Province, near Canton, Levine 1271, August, 1917; Loh Fau 
Mountain, Merrill 10715, August, 1917: Chekiang Province, Meyer 1613. 
Hainan, Hongkong Herbarium 413. Probably referable here is Merrill 
11132 from plants cultivated on a compound wall at Sheklung, Kwangtung 
Province, which differs from other specimens cited in having 3- and 
5-foliolate leaves. 
STERCULIACEAE 
PTEROSPERMUM Schreber 
PTEROSPERMUM LEVIN El sp. nov. 
Arbor circiter 13 m alta partibus junioribus et subtus foliis 
dense subferrugineo- ad subalbido-tomentosis. Ramis teretibus, 
glabris, tenuibus; foliis oblongis, chartaceis, leviter inaequila- 
teralibus, integris, 8 ad 14 cm longis, 4 ad 5.5 cm latis, supra 
brunneo-olivaceis, nitidis, glabris, acuminatis, basi leviter oblique 
truncatis vel subcordatis, subtus densissime tomentosis, nervis 
utrinque circiter 8, distinctis; petiolis circiter 8 mm longis; 
stipulis ovatis ad oblongo-ovatis, integris, inaequilateralibus, 
acutis ad acuminatis, utrinque minute albido-tomentosis, circiter 
5 mm longis, deciduis ; fructibus ellipsoideis ad oblongo-ellipsoid- 
eis, teretibus, 4.5 ad 5 cm longis, brunneis, apice minute et 
breviter acuminatis, basi stipitatis, stipite circiter 8 mm longo 
‘Act. Ill rae Congr. Internat. Bot. Brux. 1 (1910) 114. 
8 Bull. Soc. Hist. Nat. Autun 24 (1911) 10. 
