478 
ROBINSON. 
KEY TO THE PHILIPPINE SPECIES OP LAPOBTEA. 
Pistillate flowers distinctly pedicelled, not flabellately arranged. 
Leaves oblanceolate, lowest veins very short. 2. L. anacardioides 
Leaves usually much wider, lowest veins arched-ascending. 1. L. lusonensis 
Pistillate flowers flabellately arranged upon a flattened or merely concave re- 
ceptacle. 
Flowers crowded in more than' one row on receptacle 3. L. densiffora 
Flowers forming a single row on the margin of the receptacle. 
Receptacles much enlarged in fruit. 
Mature leaves densely pubescent on both surfaces 4. L. crassifolia 
Upper surface of mature leaves glabrous or nearly so. 
Mature receptacles usually over 1 cm in diameter 5. L. batanensis 
Mature receptacles not over 8 mm in diameter. 
Pistillate inflorescence only moderately branched, tomentellose. 
6. L. meyeniana 
Pistillate inflorescence very diffusely branched, pilose 7. L. diffusa 
Receptacles not or only slightly enlarged in fruit. 
Leaves rigid : receptacles subtended by braeteoles 6 mm long or more. 
8. L. rigidi folia 
Leaves not rigid : braeteoles less than 2 mm long.. 
Leaves gradually contracted to an acute or subacute base. 
Stipules merely ciliate or glabrous '9. L. gracilipes 
Outer surface of stipules densely pubescent. 
Leaves oblanceolate, chartaceous 10. L. lanaensis 
Leaves wider, membranaceous or submembranaceous. 
11. L. mindanaensis 
LeaLbases much wider, cordate, truncate, or at least, very obtuse. 
Under surface of leaves densely pubescent 12. L. leytensis 
Under surface of leaves glabrous or only obscurely pubescent. 
Leaves thickly chartaceous 13. L. subpeltata 
Leaves membranaceous or submembranaceous 11. L . mindanaensis 
Flowers sessile in a purple, succulent, nearly closed receptacle.. 14. L. subclausa 
The pistillate flowers of L. venosa are as yet unknown, but it probably comes 
nearest to L. lusonensis: see text. 
1. Laportea luzonensis Warb. in Perk. Frag. FI. Philip. (1905) 168. 
L. crenulata var. lusonensis Wedd. in Arch. Mus. Paris 9 (1856) 133. 
L. crenulata F.-Vill. IvToviss. App. (1882) 204; Vidal Rev. PI. Vase. Filip. 
(1886) 255; non Gaudich. Bot. Voy. Uran. (1826) 498. 
Luzon, Province of Uocos Norte, Bolo River,- For. Bur. 13871 Merritt & Dar- 
ling : Province of Bataan, For. Bur. 2631 Meyer: Province of Laguna, Calauan, 
Cuming 522: Province of Batangas, Santo Tomas, Philip. Nor. Bch. 339 Aurelia 
Malvar. The following staminate or sterile collections are also probably referable 
here. Luzon, Province of Benguet, Mount Tonglon, Merrill 1^838: Province of 
Bataan, For. Bur. 6522 Curran: Province of Laguna, Los Banos, Elmer s. n. 
Mindoro, Baco River, Merrill 1818; Subaan, For. Bur. 11379 Merritt. 
Local name : lupa, Uocos Norte. 
' 2. Laportea anacardioides sp. nov. 
Inflorescentiis pistilliferis quam petioli longioribns, pedunculis brevibus. 
non receptaculum dilatatum efformantibus, perianthio subaequaliter 4- 
partito, achenio non vel vix ventricoso, stigmate anguste conieo : foliis 
oblanceolatis, integerrimis, basi aentis vel subobtusis, apice acuminatis. 
