Tiliaceae. 105 



8. Orcwi.a tiliaefolia Vahl. 



Luzon I si., Prov. Zambales, Botolan (Warburg no. 13468). — 

 det. 0. Warburg. 



9. (irrewia iimbellata Roxb. 



Mindanao IsL, Davao (Warburg no. 14442); Apo I si., Min- 

 doro Straits (Merrill no. 428). 



Diplophractum Desf. 

 1. Diplophractum sp. 



Luzon IsL, Prov. Pampangas, Arayat (Mp:rrill no. 1389; without 

 flowers or fruit March 1903). 



Merrill's specimen no. 1389 is probably a new species of 

 Diplophmctiiui. It differs from D. philippinense Vidal Rev. 

 p. 71 (1886) which I have not seen, in having terete, hirsute 

 branches, large, persistent stipules, long petioles and much larger 

 and completely serrate leaves. Strangely enough both plants 

 were collected in the same localit}^ — Merrh.l's plant is closely 

 related to one in the Berlin herbarium from Celebes, named by 

 Warburg (in manuscript) Columbia inaequidentata. 



Columbia Pers. 



1. Coliiml)ia Blaiicoi Rolfe. 



Luzon IsL, Prov. Rizal, Antipolo (Merruj. no. 1703). 



In Blanco's III edition of Fl. Filipin. etc. in vol. 4. Nov. 

 Append, p. 30, is given as a Philippine species, Columbia flori- 

 bunda Wallich; the plant is figured under the same name on 

 p. 312 of this work. Rolfe, in Journ. Linn. XXI, p. 308 (1884), 

 has pointed out that the determination of the Philippine plant 

 is incorrect. The plant of Wallich differs principally in having 

 5 primary nerves while in the leaves of the figured plant there 

 are only 3 primary nerves. Merrill's plant, which is in fruit, 

 agrees well with the plate, therefore I have no doubt about the 

 identity of the plant of Merrill with that of the plate alluded 

 to above. In the Pflanzenfam. the name Columbia is accepted 

 while Merrill prefers, according to Kuxtze, the older name Colona 

 {Colona Blancoi Merrill in Bull. 6. Dept. Inter. (1904) 17; Colona 

 scrrati folia Cav. var. Blancoi 0. Ktze. Rev. Gen. I (1891) 82). 



2. Coliiml)ia hastata Warb. n. sp. Ramulis teretibus pilis stellatis 



distantibus scabridis, petiolis 1 — P/oCm longis apice subincras- 

 satis, stipulis hastatis 10 — 15 mm longis acutis giabris persisten- 

 tibus, foliis lanceolatis (12 — 15 cm longis, 4 — 5 cm latis) apice 



