49ö Bulletin de l'herbier buissier (2 lue SÉH.). 1905 (o84) 



>/ Croton rumicifolius nob. spec. nov. 



E caule brevi lignescente oriuntur caules plures adscendentes glaberrimi, 

 striati; stipulée indivisae setaceae 4-5 mm. longae; petiolus 3-5 mm. longus apice 

 biglandulosus ; limbus hastato-trilobus vel 5 lobus, 25/16 30/22 25/10 mm., mem- 

 branaceus glaberrimus, margine tenuiter cinctus serratus serratura obtusius- 

 cula; lobi laterales saepe divaricati exlus lobum minorem ferentes ad 5-7-10 mm. 

 longi, intermedius lanceolalus acutus 18/10 16/4 22/7 mm.; racemi terminales 

 ad 80 mm. lg. pedunculo subnullo vel ad 30 mm. longo crassiusculo ; fföres 

 foeminei 5-6 demum distantes, masculini in racemum angustum elongatum 

 dispositi; bracleae filiformes vel angustissimae lineares apice subulatae glabrae; 

 pedicellus fœmineus6-9 mm. puberulus; sepala 6 lanceolata, extus basi puberula 

 glanduloso denticulata 8-9 mm. lg. 2,5-3 lata; disci glandulae latae sepalis 

 oppositae; ovarium glabrum ad 5 mm. longum; Stylus tripartitus ramis flabelli- 

 formiter 4 partitis, ramis 4-5 mm. longis filiformibus; pedicelli masculini fili- 

 formes glabri 1,5-2 mm. longi; sepala 5 obovata glabra, petalis minoribus, glan- 

 dulis alternipetalis rotundatis; stamina cc. 15 filamentis longiusculis glabris 

 eeterum floris glabrum. 



Sp. novasect. Astraeœ affinis C. Jatrophce Muell. Arg. a quo differt stipulis 

 longioribus peliolis et foliis minoribus, racemis haud longo tractu nudis; 

 similis etiam C. aureo-marginato . 



Suffrutex decumbens vel adscendens 0,2-0.3 m. in campis pr. flumen Capibary. 

 Sept., n. 4386. 



Croton aureo-marginatus nob. spec. nov. 



Suffrutex vel fruticulus trunculo erecto pluriramoso basi articulato ad 4 mm. 

 crasso ut rami simplices glaber; ranii plus minus divaricati flexuosi glaberrimi 

 striati vel sulcati valde foliosi ; stipulai deciduae minimae; petioli glabri 

 7-12 mm. longi glaberrimi supra leviter canajiculati, limbus 80/22 70/25 

 50/15 mm. membranaceus ovato-oblongus vel subliastato-oblongus, basi trun- 

 catus vel subcordatus, breviter acutus, margine undulata, sinuatus aureo*- 

 marginatus, margine angusta ut funiculo cartilagineo circumdatus; nervi 

 laterales 11-13 subpatentes tenues contra est nervus medianus, subtus, ut 

 margo prominens et coloratus; racemus terminalis pedunculo sat robusto 30-40 mm. 

 1,5 mm. crasso; inflorescentia pyramidalis subdensa; flores fœminei cc. 3, 

 pedicello 1,5-2 mm. puberulo quam bractea filiformi breviore; calyx basi 

 breviter campanulatus dilatatus, lobis cc. 7 crassiusculis 5-6 mm. lg., 2-2,5 mm. 

 latis oblongis breviter acutis, adpresse et remote serrulatis; discus crassus pulvi- 

 natus rotundato lobatus, lobis sepalis oppositis; ovarium glabrum disco multo 

 angustius superpositum; Stylus brevis, trifurcatus ramis expansis apice cc. 6 

 fnrcatis pilis sparsis puberulis; flores ^ minores perigonio 10-12 lobo, 

 staminibus 10-12, filamentis glabris pilis in centro floris deficientibus, petalis 

 obovatis vel oblongis basi ciliatis; sepalis longioribus obovatis. 



Species affinis C. cincto Muell. Arg. a quo differt foliis aureo-marginatis baud 

 crenatis longius petiolatis, sepalis fœmineis haud rubro-marginatis. 



Fruticulus 0,3-0.5 m. sepala viridia, in campo pr. Ine hu, Sierra de Maracavu, 

 Oct., n. 5010. 



Sectio Octolobum nob. Sectio nova. 



Sepala foem. 8 (rar. 6-7); petala obsoleta vel nulla; ovarium pilis stellatis 

 hirsutus; receptaculum floris masculini 5 lobi glaberrimum. 



Affinis Sectioni Decalobo a qua differt imprimis receptaculo masc. glaber- 

 rimo. 



Crolon guaraniticus nob spec. nov. 



Suffrutex caulibus repetite bifidis striatis subcostatis laxe hirsutis vel 

 pilis flavis numerosioribus basi interdum stellatis medio setam longam 3-5 mm. 

 patentem ferentibus; stipula? anguste lineares vel filiformes 5-7 mm. longae 



