'm OVm. LOGANIACE^. 



Obdo OVIII. rOGAKIACE2:. 



■ 



EndL Gen, 574. LinclL Veg. Kingd. 602. E. Bureau, Logaiiiac^es, Tlifese, 1856< 



Mores regulares v, vix obliqui, liermapliroditi v. abortu siibdioici. Calyx iiiferus^ tubo 

 campanulato sajphis "brevissimo v, 0, lobis v, segnientis 4^5" imbricatia (rarij^sime val- 

 vatis^). Corolla gamopetala, infundibularis hypocrateriformis v, rarius Gampaniilata v. 

 i"Otata, lijubo 4-5- rarius co-partito, lobis valvatis imbricatis v. contortls. Stamhm tot 

 qiaot corollre lobi iisqiio alterni, faiici v. tubo corollfts affixa, v. (in Usierm) ad 1 rediicta ; 

 filamenta filiformia v, rarius dilataiaj Siepe brevissima. Antherm dorso affixfej loculis 2 

 distinctis parallelia lutrorsum rima loiigitudinali deliiscentibus v, rarins loculis divari- 

 catia apiceqiic coiifluentibus apert^e, 1-loculares, PolUn minute granulosum. Dlsmts 

 V, rarius sub oyario camosus. Ovarium siiperuiUj 2- rarius 3-5-loculare- Stylus simplex 

 V. rarius basi in stylos 2 per anthesin fissus, indivisus et apiee capitatus *v. clavatns v, 

 semol bisve 2-fidus, summo vertice v. in facie interiorc ramorum stigmatosus, Ovula^ 

 quoque loculo nunc numerosaj placentis medio septo v* axi adnatis v- peltati-s affixa, nunc 

 solitaria v, gemina, erecta lateraliter affixa v. summa rarius pendula, anatropa v. amphi- 

 tropa. FmcUis nunc capsularis in carpella v. valvas 2 septicide aecedens, valvis carpelliave 

 apice et introrsum loculicide deliiscentibus, nunc baccatus v. drupaceus, indeliiscens. 

 Semina forma varia, testa reticulata tuberculata v. l^vi, apice basique v. circumcirca 

 alata v- exalata. Albumen camosnm v. cartilagineunij a^piua copiosum. Embryo in albu- 

 minis axi v, prope hilum rectus v. rarius incurvus, albumini fere jequilongus v- multo 

 brevior ; cotyledones nimc radicula hand latiores, breves semiteretesqucj nunc latiores 

 crassiusculce v. foliacese, radicula tereti v. conica sfepius infera. 



Herbse frutices v. arbores, habitu varii. Folia oppoftita v, rarius verticillata, integer- 

 rima v> dentata, indivi^a, linea v, membrana angusta transversa connexa, v, auriculis 

 stipulifonnibtis Vagina intrapetiolari v, stipnlis veris saepius minimis basi stipata. In- 

 florescentia nonnaliter 2-3-chotome c3rmosa, cymis terminalibus panicnlatia v. axillaribus, 

 interdum vero in capitula globosa v- fasciculos sessilea confertis v. ad flores solitarios 

 geminosvo reductis, Bracteaj ssepius squamiformes v. 0, bracteolm in pedicellis ravrc, 

 Flores majusculi mediocres v. parvi^ nee minimi, sfepius rubri albi purpuraScentes v. 

 pallida citrini, rarius flavi, nee unquam cosrulei dicnntur. 



Species ad 350, per regionos tropicas utriusque orbifi late dispersse, in America estratropica 

 Africa australi et Australia exfratropica paucse, in Europa et Asia Ttossica dosunt- 



Ordo quodammodo heterogeneus, attamen, Gelsetnieis excQ-pt^s^ Hiihiaceis tjimillimus, et artificiose 

 sejimctus ovario eupero ; quas autom cum Gentianeas connoctit .stipulis minus evolutis aliisijue notis. 

 Ab his d^stihctio magis naturalis, sed characteres nuUi certi. Ovarium perfecto eeptatufti etiam in 

 generibus paucis Gentianearum observatur; stirpos herbacea^ in Loganiaceis adsunt etsi rara?'; 

 stipulre noununquam ad lincam transvcrsam vix couepicuam v, ad petioloriTm conjunctioneni redu- 

 cuntur- Embryo in Loganiaceis ssepius ratione albuminis major qiiam in Gentianeis, interdum vero 

 minimus occnrrit. AfEiDitas summa indicatur cimi A^ocyaaccls et Sorophulanncis^ a prioribiis timen 

 facile (an constanter?) distinguitur stylo fiummo vertiCQ V. intra lobos nee oxtrorsum infra apicu- 

 lum terminalem stigmatoso, et ssepius habitu, stipulis, fructu non follicnlari, embryone minore, etc. ; 

 a Scrophulanneis differunt floribns St^pius regularibus, stziminibus eoroll^ lobis isomeris, eorollie 

 asstivatione nimquam 2-Iabiata, aliisque notis, TribuB Gelsemiearicm genera continet tria, corolla 

 staminibuset stylo inter so eimillima, orario et eeminibus heterogenea, attamcn nostro^ensu inter se 

 affima et melius cum Loga/uaceis quam cum uUo alio ordino associata. Eorura stylus bis 2-fidus in 

 Gamopetalis Tionjiisi in Coiivolvulaceis pa,ucis et in Cordia £orraginearum observatur; semina lend- 

 eularia in Gehemio alata, in Mostuea esalata, et linearia apice comosn Plocos^ei^matis iis A;pocyneanim 

 accedunt, 



POHaLE ABXORMES. 



Calycis lobus unua niaximus petaloideus in U&teria^ lobi sitbvalvati in Nuxia. 



Coroll£6 tubus supra basin pe'Tsistentem circunisciK-'^us in ^ima^ limbus sPepe obliquus v. parum 

 insequalis in Gehemio^ Spigelia et Fagma, 



