X, c, 1 Merrill: New or Noteworthy Philippine Plants, XI 3 



DIPLANTHERA Thouars 



DIPLANTHERA UNINERVIS (Forst.) Aschers. in Engl. & Prantl Nat. 

 Pflanzenfam. 2' (1897) 37; Graebner in Engl. Pflenzenreich 31 (1907) 

 152. 



Zostera uninervis Forsk. Fl. Aeg.-Arab. (1775) 159. 



Cavilli Island, Sulu Sea, Merrill 7179, September, 1910, on coral sand 

 in shallow water, usually exposed at low tide; sterile specimens det. C. H. 

 Ostenfeld. Luzon, Manila Bay, on the Bataan coast, Shaw. 



Not previously reported from the Philippines; tropical shores from the 

 Red Sea and the east coast of Africa to Malaya, Australia, and Polynesia. 



FLAGELLARIACEAE 



HAN GUANA Blume {Stisum Blume) 



HANGUANA MALAYANA (Jack) comb. nov. 



Veratrum ? malayanum Jack in Malay Miscel. 1 (1820) 25; Hook. Bot. 

 Miscel. 2 (1831) 74. 



Hanguana kassintu Blume Enum. PI. Jav. (1827) 15, ed. 2 (1830) 15; 

 Miq. Fl. Ind. Bat. 3 (1857) 248. 



Susum malayanum Planch ex Hook. f. Fl. Brit. Ind. 6 (1892) 391; Ridl. 

 Mater. Fl. Malay. Penin. 2 (1907) 132. 



Veratonia malayana Miq. Fl. Ind. Bat. 3 (1857) 553. 



Palawan, Malampaya Bay, Merrill 7221, September, 1910. Mindanao, 

 Province of Surigao, Hinatuan, Piper 529, May, 1911. 



There seems to be very little doubt as to the identity of Veratrum mala- 

 yanum Jack and Hanguana kassintu Blume, and as Blume's generic name 

 Hanguana has three years priority over his generic name Su^uin, it is 

 here adopted. The case is not covered by the lists of nomina cmiservanda 

 adopted by the Vienna or the Brussels botanical congress. 



The genus has previously not been reported from the Philippines. 

 Malay Peninsula and Archipelago. 



CHLORANTHACEAE 

 CHLORANTHUS Linnaeus 

 CHLORANTHUS VERTICILLATUS sp. nov. 



Herba erecta, ramulis subtus foliisque ad nervos plus minusve 

 f urf uraceo-pubescentibus ; foliis membranaceis, breviter petio- 

 latis, verticillatis, ovatis ad elliptico-ovatis vel elliptico-obovatis, 

 acuminatis, usque ad 10 cm longis, utrinque angustatis, margine 

 distincte acute apiculato-serrulatis ; spicis 1 vel 2, 2 ad 3 cm 

 longis, pedunculo elongate; squamis antheriferis 3-partitis, lobis 

 inaequalibus, intermedia 4 mm longa. 



An erect, apparently branched herb, the younger branchlets, 

 the lower surfaces of the leaves on the veins and reticulations, 

 and to a lesser degree the inflorescence more or less f urf uraceous- 

 pubescent. Leaves verticillate at the apices of the branchlets, 

 in whorls of 4, membranaceous, ovate to elliptic-ovate or elliptic- 



