Serjania. 185 



bian Mus., Bot. Ser., I. 4. (1898) 403, coli. Gaumer n. 1114; P. C. Standley, Trees and 

 Shrubs of Mexico in Contr. U. S. Nat. Herb. XXIII. 3.(1923)694, c. nom. vulg.: »Bui«. 

 — Scandens, suffruticosa, gracilis, pilosa; caules subherbacei supra basin eramosi 

 canaliculato-5-sulcati, 5-angulati, ad angulos pilis patentibus hirsuti, cortice viridi; 

 corpus lignosum simplex, teretiusculum ; folia subbipinnata, quadrijuga, jugo infimo 

 utrinque 5-foliolato-pinnato, sequenti ternato, reliquis simplicibus, rhacheos segmentis 

 superioribus subalatis, petiolo nudo; foliola parvula, terminalia ex ovali lanceolata, 

 mucronulata, reliqua ex obovato attenuata vel suborbicularia, subsessilia, apice utrinque 

 1-dentata, obtuse vel brevissime mucronulata, membranacea, utrinque pilis setaceis 

 praesertim in nervis et prope marginem adspersa glandulisque microscopicis ornata, e 

 viridi fuscescentia, impunctata, epidermide valde mucigera; thyrsi solitarii, teneri, 

 quam folia breviores, rhachi brevissima, cincinnis subsessilibus; flores inde subumbellati, 

 perparvi; sepala omnia hirtello-pilosa; fructus sat latiseptus e breviter elliptico sub- 

 orbicularis, apice impressus, praeter angulos glaberrimus, loculis majusculis, pericarpio 

 tenui, endocarpio glabro; semen prope loculi basin insertum. 



Gaules (a me visi) 2 — 3-spithamei, diametro 1 — 1,5 mm, internodiis 2 — 7 cm longis. 

 Folia inferiora 7 — 8 cm longa, 3,5 cm lata, superiora decrescentim minora; foliola 

 terminalia 1,5 — 2 cm longa, 5 — 6 mm lata, lateralia decrescentim minora, inferiora 

 vix 0,5 mm longa, 3 mm lata; petiolus communis 1 — 3 cm longus, partiales laterales 

 3 mm vix excedentes, rhacheos segmentum inferius 12 — 15 mm longum, superiora 

 decrescentim breviora; stipulae minimae. Thyrsi folia dimidia aequantes vel paullo 

 superantes rhachisque brevissima, cincinnos circ. 3 4 — 5-floros gerens pilis patentibus 

 hirsuta; pedicelli 2,5 mm longi, infra medium articulati; alabastra subglobosa, 1 mm 

 diametro vix superantia, hirtella. Sepala interiora (sub fructu relicta) 2,5 mm longa. 

 Petala (in alabastro inclusa) obovata, intus glanduligera; squamae superiores crista 

 obcordata appendiceque barbata, inferiores crista dentiformi instructae. Tori glandulae 

 superiores rotundatae, laterales obsoletae. Stamina pilosiuscula. Germinis rudimentum 

 subglabrum. Fructus 1,3 cm longus, 1 cm (ad loculos 8 mm) latus, infra loculos non 

 constrictus, loculis dorso carinatis. Semen subglobosum, diametro 2 mm, spadiceum. 



In Yucatan: G. F. Gaumer n. 1114! (Buena Vista Xbac, m. Sept. 1895, alab. 

 et fruct. ; stirps rara, ad altitudinem 10 ped. scandens; comm. Millspaugh). 



157. S. truncata Radlk. in Fl. bras. XIII. 3. (Fase. 113, 1893) 331. — Scandens, 

 fruticosa, subglabra; rami 5 — 6-sulcati, 5 — 6-costati, cortice fusco; corpus lignosum 

 simplex, sulcatum; folia bitarnata; foliola medioeria, elliptica, lateralia inferiora ovata 

 vel subrotunda, perbreviter obtuse acuminata vel obtusa, subpetiolulata, remote 

 obtuso-dentata, subcoriacea, supra circa articulationes et in nervis, subtus undique 

 puberula nee non glandulis microscopicis adspersa, fuscescentia, punetis pellucidis vix 

 ullis notata, epidermide mucigera; petiolus communis partialesque nudi, minutim 

 crispato-puberuli; thyrsi solitarii, rhachi brevi; cincinni stipitati; flores medioeres; 

 sepala exteriora et interiora puberula; fructus sectionis cordato-ovatus, apice truncatus, 

 glaber, loculis sat magnis dorso et apice anguste cristatis, epicarpio tenui, endocarpio 

 chartaceo laxe piloso; semen prope basin loculi insertum, obovoideum. 



Rami thyrsigeri diametro 2,5 mm, glabri nee nisi in sulcis puberuli. Folia circ. 

 14 cm longa, 12 cm lata; foliola terminalia 6 cm longa, 3 cm lata, lateralia decrescentim 

 minora (infima interiora subrotunda diametro 1,5 cm vel vix majore); stipulae parvae, 

 deltoideae. Thyrsi 12 cm longi, rhachi quam pedunculus sexies breviore. Sepala (sub 

 fructu relicta) interiora 3 mm longa, exteriora breviora. Torus glaber, glandulis superi- 

 oribus breviter ovatis. Fructus pedicello 4 mm longo prope basin articulato nee non 

 cincinni stipite aequilongo suffultus, 2,5 cm longus, fere totidem (ad loculos 1,4 cm) latus. 



In Brasiliae civ. Rio de Janeiro prope Cabo frio: H. Schenck, sine n.! 



158. S. tristis Radlk. Serj. Monogr. (1875) 293, Suppl. (1886) 150, in Warming, 

 Symb. Part. XXXVII. in Vidensk. Meddel. (1890) 242 (993), in Fl. bras. XIII. 3. (Fase. 

 113, 1893) 331 t. 79, et in Ghod. et Hassler, PI. Hassler. in Bull. Hb. Boiss. 2. ser. III. 9. 



