688 ROBINSON. 



kkv to THI PHILIPPINE QBNXBA OS lJORAOl xackak." 



Styles term ilia 1. 



Trees or shrubs, sometimes climbing. 

 Style single. 



Style twice forked I. Cordia 



Style distinctly 2-lobed 2. Ehretia 



Style simple or indistinctly 2-lobed. 



Leaves less than 2 cm long 4. Rotula 



Leaves at least 5 cm long 6. Tournefortia 



Styles 2 2. Ehretia 



Herbaceous. 



Fruit entire 3. ( 'oldenia 



Fruit splitting naturally into 2 or 4 ... <!. Heliotropium 



Styles not terminal; never trees or shrubs. 



Fruiting calyx enlarged, inclosing nutlets 7. Triekodeama 



Fruiting calyx not enlarged, usually spreading. 



Nutlets armed with barbed prickles. 8. Oynogtoasum 



Nutlets tuberculate-roughened !>. Bothrioapermum 



Nutlets very smooth in. Trigonotia 



I. CORDIA Linn. 



Calyx not or very obscurely ribbed. 



Calyx and tube of corolla about same length 1. C. blancoi 



Corolla-tube over twice as long as calyx 2. 0. tuboordata 



( alyx strongly 10-ribbed 3. ('. cumiutiiaua 



1. Cordia blancoi Vidal Rev. PI. Vase. Filip. (1886) 192. 



c. sebestefM Blanco Fl. Filip. (1837) 121 j Naves in Blanco Fl. Filip. ed. 3 

 i 1877) pi- 48; non Linn. Sp. PI. (1753) 190. 



0. dichotoma Blanco Fl. Filip. (1837) 123; forsaii Foist. Prodr. (1788) is. 



C. myxa Llanos Mem. Real Acad. Ci. Madrid 4 (1S59) 508; Benth, Fl. Austr. 

 4 (1869) 386, quoad f)hilippinonsis ; Vidal Sinops. Atlas (1883) xxxiv. pi. 70, 1>: 

 F.-Vill. Noviss. App. I 1880) 137; forsan Linn. Sp. PL (1753) 190. 



('. apeoiota t Naves ]. c. ; non Salisb. Prodr. (1796) 111. 



C. leachenouUii Vidal llevis. PI. Vase. Filip. (1886) 193; non DC. Prodr. 9 

 (1845) 482. 



0. pauuuhttu F.-Vill. Noviss. App. (1880) 138; forsan Loth .Nov. l'l. Sp. 

 (1821) 126. 



LUZON, Province of Ilocos Sur, Santiago. For. Bur. 14069 Merritt if Darling: 

 Province of Benguet, Bugpan, For. Bur. 14131 Merritt & Darling: Province of 

 Isabela. Dagan, Bur. Sci. Sl-i'/ Ramos: Province of Nueva Ecija, Bongabong, 

 For. Bur. 9595 ZeohoJcke: Province of Rizal, Bosoboso, Merrill 1827, 26,15 : Lay) ay. 

 Bur. Sri. 2687 Ramos: Province of Zambales, Botolan, Merrill 1912: Province 

 of Bataan. Mariveles, Ahem 788; Lamao River. Whit ford t.'tiJ. For. Bur. 768, 



t267, l'l.) Borden, \lerr. Deo. Philip. For. Fl. mi Borden: Province of Cavite, 

 laagallanes, For. Bur. 7695 Merritt if- Currau : Province of Laguna, Los Bafios, 

 Elmer a. n.: Province of Tayabas, Malicboi, Ritchie 22m; Mulanay, For. Bur. 

 tOSOS Gurranj Tayabas. For. liur. 7100 Kobbe : Province of Camarines, Tinam- 

 bac, For. liur. /J. .'.">? Aguilar; Paaacao, Ahem 88, 791: Province of Sorsogon, 



between Sorsogon and Cuhat. For. liur. 10546 Currau. Minikiho, Mangarin. 



"This key is only partially natural, as it is intended for local use, and some 

 of our species do not show clearly the characters of their genera. 



