Serjania. 47 



los attenuata, obsolete transversim reticulata; cin- 

 cinni longiuscule stipitati (epidermis mucigera; sp. 



jamaicensis?) 196. S. nodosa. 



bb. Corpora lignosa peripherica in centrale plus minus 

 immersa; foliola breviter et late ovata vel suborbi- 

 cularia, basi in petiolulos breves, apice in acumen 

 breve abruptius contracta, insigniter transversim 

 reticulata; cincinni breviter stipitati (epidermis 



parum mucigera; sp columbiana) 197. S. circumvallata. 



b. Folia biternata (petioli omnes nudi). 

 aa. Foliola crenata vel dentata. 



a. Rami teretiusculi, 8-striati; foliola coriacea, bre- 

 viter et late ovata, acuta, grosse crenata, in- 

 signiter pellucido-punctata (epidermis parum muci- 

 gera; sp. columbiana) 198. S. brachyphylla. 



ß. Rami obtuse trianguläres, juxta angulos utrin- 

 que stria impressa notati; foliola membranacea, 

 elliptica, obtuse acuminata, remote et obtuse 

 dentata, punctis pellucidis minutissimis obsolete 

 notata (epidermis mucigera; sp. costaricensis) . 199. S. inebrians. 

 bb. Foliola integerrima, rarius obsolete dentata, in 

 acumen obtusum mucronulatum protracta (epider- 

 mis mucigera; sp. brasiliensis) 200. S. acuminata. 



Accedunt: 201. S. heterocarpa Standley, Trees and Shrubs of Mexico, 



in Contrib. U. S. Nat. Herb. XXIII. 

 (1923) 694-699. 



202. S. oaxacana Standley, 1. c. 695. 



203. S. Rekoi Standley, 1. c. 696. 



204. S. pacifica Standley, 1. c. 699. 



Sect. I. Platycoccus Radlk. 

 Subsectio 1. 



1. S. tenuis Radlk. Serj. Monogr. (1875) 98, Suppl. (1886) 80 t. 3 f. 1 (corp. lign.), 

 et in Fl. Bras. XIII. 3. (Fase. 113, 1893) 249. - Serjania spec. Mart. Hb. Fl. Bras. III. 

 (Gat. autogr., 1842) n. 1245!; Schlechtend. in Linnaea XVIII. (1844) 39 (sph. 55) et 45 

 (sph. 61), Mart. Hb. Fl. Bras. n. 1245! - »Urvillea glabra Camb.?« Benth. in Hook. 

 Journ. Bot. III. (1851) 192, Mart. Hb. Fl. Bras. n. 1245! - Scandens, fruticulosa; rami 

 5-costati, sulcati, glaberrimi; corpus lignosum compositum e centrali majore et peri- 

 phericis 3 parvis (cf. Radlk. Serj. Suppl. tab. III, fig. 1); folia ternata; foliola terminalia 

 elliptica, lateralia ovata, omnia acuta, utrinque dentibus duobus obsoletioribus remotis 

 callosis notata, subsessilia, glabra, obscure pellucido-punctata, epidermide mucigera; 

 flores subsectionis pro genere majusculi, petalis interne glandulis microscopicis obsitis; 

 fruetus sectionis medioeris, endocarpio albo-floccoso. 



Gaulis ad altitudinem 3 m scandens. Rami sarmentosi, tenues, costis quinque 

 obtusis notati vel subtrigoni. Folia circ. 13 cm longa, 12 cm lata; foliola terminalia 

 quam lateralia paullo majora, 7 — 10 cm longa, 3 — 4 cm lata, elliptica, basi et apice 

 acutata, inde saepius plus minus elongate hexagonalia, ad angulum inferiorem et 

 superiorem (rarius etiam inter hunc et apicem) utrinque dente obtuso apice calloso 

 instrueta, interdum apicem versus remote repando-dentata, modo sessilia, modo breviter 

 petiolulata; foliola lateralia 5 — 7 cm longa, 3 cm lata, e basi rotundata ovata, ceterum 

 terminalibus conformia, sessilia vel brevissime petiolulata; omnia penninervia, nervis 

 lateralibus utrinque 5 — 7 arcuatis, venis transversalibus, rigidiuscule membranacea, 



