THE PHILIPPINE 
JOURNAL OF SCIENCE 
VOL. 17 NOVEMBER, 1920 No. 5 
STUDIES ON PHILIPPINE RUBIACEAE, IV 
By ELMER D. MERRILL 
Director and Botanist, Bureau of Science, Manila 
In this fourth paper of the series‘ sixty-two new species are 
proposed in the genera Gynochthodes, Hedyotis, Ixora, Morinda, 
Mussaenda, Ophiorrhiza, Pavetta, Plectronia, Psychotria, Randia, 
Tarenna, Timonius, Urophyllum, and Williamsia. In this series, 
including the present paper, about one hundred sixty new species 
have been described. In the present paper, as in its predecessors, 
notes on nomenclature have been included, in the present con- 
tribution such notes being confined to those species proposed 
under the generic designations Webera, Tarenna, Pavetta, and 
Stylocoryna. An attempt has been made to distribute these 
between the genera Tarenna and Pavetta. 
GYNOCHTHODES Blume 
GYNOCHTHODES MINDANAENSIS sp. nov. 
Frutex scandens, glaber,. ramis ramulisque teretibus; foliis 
subcoriaceis, ellipticis ad oblongo-ellipticis, 6 ad 10 cm longis, 
utrinque subaequaliter angustatis, breviter acuminatis, basi 
acutis vel acuminatis, nervis utrinque circiter 6, tenuibus, reti- 
culis obsoletis; inflorescentiis axillaribus, 2.5 ad 4 cm longis, 
5- ad 9-floris, racemosis vel cymosis, vel umbellatis, calycis cupu- 
latis, truncatis, 4-mm longis; corollae tubo 8.5 mm longo; fruc- 
tibus late obovoideis, circiter 8 mm diametro, 4-locellatis. 
A glabrous, woody vine, the branches and branchlets terete, 
* Studies on Philippine Rubiaceae, I, Philip. Journ Sci. 8 (1918) Bot. 
31-62; II, op. cit. 10 (1915) Bot. 99-144; III, op. cit. 12 (1917) Bot, 
159-176. 
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