PHILIPPINE B0RAGINACE2E. 693 



3. COLDENIA Linn. 



Coldenia procumbens Linn. 8p. PI. (1753) 1 25, 



Luzon, Province of Cagayan, Solana, Bur. Sci. 7892 Ramos: Province of Union, 

 San Fernando, Herb, San Fern. High School: Province of Pangasinan, Cuming 

 995; Bani, Bur. Sci. ',920 Ramos: Province of Pampanga, Arayat, Merrill \ ',')',: 

 Province of Rizal, Bosoboso, Bur. Sci. 6787 Robinson; Taytay, Bur. Sci. 2655 

 Ramos; Tanay, Bur. Sci. 8848 Ramos. Mindobo, Magaran, Bur. Sci. 6687 

 Robinson. 



Local name, papa atinuang, Union. 



Cosmopolitan in the tropics of both hemispheres. 



4. ROTULA Lour. 



Rotula aquatica Lour. Fl. Cochinch. (1700) 121. 



Rhabdia lijcioides Mart. Nov. Gen. & Sp. 2 (1827) 136, pi. I!).',. 



Luzon, Province of Cagayan, Tuguegarao, Roister 198, Bur. Sci. 7874 Ramos: 

 Province of [locos Norte, Bur. Sci. 2225 Mcarns: Province of Zambales, Cande- 

 laria, Bur. Sci. ^809 Ramos: Province of Bulacan, near Norzagaray. Voder 171: 

 Province of Rizal, Montalban, For. Bur, 8400 Ahern's collector. Mindobo, Tubile, 

 For. Bur. 8646, 9929 Merritt. 



Used as a house decoration at Tuguegarao. where it is very common. Plant 

 usually Bcandent, growing on rocks in river-beds, or in sandy soil near streams. 



The identity of Rotula aquatica and Rhabdia lycioides was stated by Clarke," 

 but without comment. Loureiro's names are the older, both for the species and 

 genus, the genus is considered to be nionotypic and the name I'otala in the 

 Lythraceae, the only obstacle, is sufficiently distinct. If Rhabdia were retained, 

 a new combination would be necessary. In order to finally settle the ques- 

 t ion. information was sought from Dr. A. B. Rendle. of the British Museum 

 of Natural History, where Loureiro's collections are preserved. lie writes: 

 "Loureiro's type of Rotula aquatica consists mostly of leafless twigs but there are 

 fragments of flowers fruits and leaves which put beyond doubt the identity of 

 the plant with Rhabdia tycioides. An anatomical examination of the twigs con- 

 firms the identity. As you suggest in your letter the name Rotula must be taken 

 for the genus." 



Tropics of both hemispheres. 



5. TOURNEFORTIA Linn. 



Coastal trees or shrubs; corolla-tube about same length as calyx.... I. T. argentea 

 Shrubby, usually scandent; corolla-tube much longer than calyx. 



Calyx densely tomentose 2. T. horsfieldii 



Calyx, though pubescent, not tomentose 3» T. sarmentosa 



1. Tournefortia argentea Linn. f. Suppl. (1781) 133. 



'/'. arborea Blanco PI. Filip. (1837) 12!). 



Batanes Islands, Sabtan Island. Santo Domingo de Basco, Bur. Sci. 8762 F4nix. 

 Babuyanes Islands, Fuga Island, Bur. Sci. 3252, 325.1 Mcarns; Babuyan Island, 

 Bur. Sci. 389', Fcni.r : Camiguin Island, Bur. Sci. 389.',, .',00', Fcni.r. LUZON, 

 Province of Cagayan, Palaui Island, For. Bur. 1G93J, Vurrau: Province of Panga- 

 sinan, northwest coast, Bur. Sci. 8351 Curran & Merritt: Province of Camarines, 

 Pasacao, Ahem 221. 2',',. Mindobo, Pinamalayan, For. Hur. 6788 Merritt ; 



'Hook. f. PL Br. Ind. 4 (1883) 145. 



