336 CLI. EUPHORBIACE^. [Crotoiiece. 



ignoti. Fl. $ : Calyx minutus v. 0. Ovarium 2-loculare ; styli 2, brevissimi, crassi, 

 patentes, 2-lobi ; ovula in loculis solitaria. Fructus in coccos (2- valves ?) secedens v. 

 abortu 1-coccus, pericarpio haud crasso. Semina globosa. testa aspera ; embryo . . . 

 — Frutex resinosus. Folia alterna, breviter petiolata, parvula, oblongo-lanceolata, 

 coriacea, penniveniaj glandtilis marginalibus subdentata. Flores $ parvi, ad axillas 

 sessilea, solitarii v. gemini. 



Species 1, Cubensis. Mxiell. Ar^. in DC. Prod. xy. ii. 1138. Genus floribus masculis ignotis 

 quoad afBnitates valde incertum. Habitus BonanitSt sed styli valde diversi. 



188. Sebastlanla, S'preng. Neut Enid. ii. 118, t. 3. (Gusaonia, Spre'tig. l.c. 119, i. 2.) 

 — Flores monoici, apetali. Discus 0. Fl. (J : Calyx minimus, membranaceus, jam ante 

 anthesin apertus, insequaliter 3-5-lobua v. partitus. Stamina 2 v. 3, rarissime 4, 

 filamentis brevibus liberis v. vix basi connatis ; antlierarum loculi distincti, ovoidei, 

 contigui, parallel!, longitudinaliter dehiscentea. Ovarii rudimentiim 0. Fl. $ : Calyx 

 3-partitua v. 3-lobus, ovario brevior. Ovarium 3-loculare, styli patentes v. revoluti, 

 liberi V. basi brevissime connati, indivisi ; ovula in loculis solitaria. Capsula tridyma v. 

 aubglobosa, in coccos 2-valves a columella centrali dissiliens, endocarpio crustaceo. 

 Semina oblonga v. subglobosa, stropliiolata, testa Isevi ; albumen carnosum ; cotyledones 

 planfe, latse. — Frutices sjepius tenues, rarius herbae. Folia alterna, spepius parvula v. 

 angusta, integerrima v. minute serrulata, vix coriacea, pennivenia. Raccmi graciles, 

 terminales v. simul axillares v, laterales. Flores ^ minimi, ssepius sub quaque bractea 

 2-3, breviter pedlcellati v, subsessiles ; $ ad basin racemi v. in caule pauUo iiiferius pauci 

 ssepius singuli, distinctius pedicellati ; racemi tamen interdum omnino ^ . Bractefe 

 minima, sub fl. $ utrinque glanduliferse v. eglandulosse. 



Species ad 40, quarum una inter tropicos orbis veteris incola, una iu civitatibus australioribus 

 Americse borealis reperitur, cseterse omnes Araericanse tropicae imprimis Brasilianse, ex his tamen una 

 etiam in Africa tropica occideDtali invenitur. Muell, Arg» in DC. Prod. xv. ii. 1165, et in Mart. 

 Fl. Bras. li. ii. 545, t. 77 ad 80, exclusis tamen speciebus nonnullis ad Gymfhanthem referendis. 



Genera plurima in Prodromo cum Gymnantki, Swartz, sub nomine Sprengeliano juncta, ibidem a 

 Stillingia distinguuntur capsulae columella persistente receptaculo non 3-cornuto, mh Excoicaria ^QXiiX- 

 nibuB strophiolatis, melius tamen naturae consentire vidctur si Gymnanthan excludimus, et genera 

 sequeutia sola pro sectionibus retinemus. Genus ita reformatum Exctxcari^ quam maxime affine, 

 calyce et capsula conforme, di^fert infloreseentia ad normam (non tamun constauter) terminali et 

 seminibus strophiolatis. 



1. DiTBYSTNiA, Bafin.Neogeiiet. 2. Species boreal i- American a {S. ligustrina) \\d.h\iM fere Stillingia, 

 characteribus omnino Microstachyos nisi perianthium fl. S magis evolutum late et insequaliter 3-5- 

 lobum. Capsulre cocci Iseves. 



2. MicROSTACHYS, A. Juss. Euph. Tent. ^%,t. 15. (Cnemidostachys, il/w**^. Nov. Gen. ct Sp.\. 66, 

 t. 40 ad A'i,antea in Beise 20fi nomen tantum. Elachocroton, F. Muell. ,' t Hook. Kew Joicm. ix. 

 17). Rami ssepius tenues. Spieae terminales v. oppositifolise. Capsulae cocci ssepius tuberculia 2 v. 

 panels muricati. Vahl, Eel. t. 19 (Tragia). Karst. Fl. Columh.t. 117 {Microstachys), Wawra in 

 Pr. Maxim. Reise, Bot. t. 44 {Cnemidostachys). 



3. Sarothrostachys, Khtzsch. in Wiegm. Archiv. vii. 185. Spicse plerseque tenues, breves, ad 

 laxillas go fasciculatae, nonnullse tamen ad apices ramorum hornotinorum solitarise terminales. Calyx 



(? omnino Microstachyos. CapsulfB cocci laeves. Species paucfe Brasilianse quarum una etiam in 

 Africa tropica. Wawra in Pr. Maxim. Beise, Bot. t. 45. 



4. Adenogyne, Klotzsch in Wiegm. Archiv. vii. 183. Spicce terminales cum nonnullis axillaribus. 

 Calyx S quam in prsecedentibus magis obliquus et inaequalis, late 2_3-fidus v, fere ^partitus, 

 vix tamen unilateralis. Capsulae cocci Iceves. Eamuli ssepe spinescentes. Species Americanse 

 tropicse. 



6. Eusebastiania . Spicse terminales. Calycis S scgmenta 3, angu3ta r. acuminata v. brevissime 



basi saepius dilatata et leviter connata, interdum fimbriata, semper parva non unilatoralia. Capsulse 



cocci Ireves. Species Amoricanro tropjcse. Sprengel l.c. bracfeas floi'es <? subtendentes pro 



calycibuB descripsit et distinxit Sehastiuu ium, hracteh basi extu.s 2-glaudulobi9, et Gusao/iiam, braeteis 

 eglandulosis. 



