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Vi'rsiicli eiiier iiatQrIichen Gliedernng der Convolvulaceen etc. 573 



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Sp. 2 ausfrali-amoricanae, 2 ad 3 africanae. — Dufourea II. B. K. ~ Calycoholm 

 Willd. ~ Reinwardlia Spr. — Detbardingia Nees et M. — Codonanthm Plancli. 



13. Bonn mi a TlioiKirsi) sens, extens. 



Flo res axillar-cs, salilarii vol in dichasiis raro in panicula tei-minali con- 

 ii;pstis; bracteae parvao, lanccolalac; sepal a varia, aequalia, orbicularia, 

 coriacea, vel lanceolata, horbacea, raro paulo inacquah'a, nunqnam mom- 

 branacea; corolla mediocns, infundibularis, exceptis ."i arois episepalis, 

 male separatis extus hirsula ; iienitalia iuclasa; filamcnta glanduloso- 

 villosa vel rarins nuda; pollen ConvolvuU \c\ dodccaedrlcus ; discus 

 [)lerumqMe oblitleraUjs; ovarium 2-loculare; stylus 2-fidus vel styli 5; 

 stigmata 2 glo])osa, raro bipartita vel 4; capsula 2-locularis, 4-vaIvis 

 vel 2- demum 4-valvis el Jignusa, rarius demum irrcgulai'iler ex apice multi- 

 lida, chartacea, 4-sporma; somina glabra, rarlus marginibus 9 externis vol 

 undique pilosa. 



Folium bifaciale vel acquifaciale ; stomalum cellulae viciuaeS vel 3, 

 rarlus 4; glandularum capitula ellipsoTdca, transverse LanLum vel eUatn 

 deorsum saepla, prona, inlerdum gerninala, in B. madagascariensi Thouius 

 deorsum tantum saepla, in cellulas 4 regulariler radiatim disposila; 

 slalli agglomerati plcrumque magni el nunierosi ubiqiie in diachymate el 

 sacpeetiarasub fascleulis librovasalibus maioi'ibus el in phloamate; celluiae 

 glandulosae plerumque numerosissimae sub epidermide et (juideni sub 

 superiore ])lerumque late lubulosae vel saceiformes, intra inferlorem spliae- 

 'icae, rarlus medio in diachymate epidcrmidi parallelae, longae, ramosae, 

 vel in nervorum vagina parenchymal ica vel nullae. 



liei'biie caule loimi vel suffrutices rigidi vel fruUces voluhilcs altc sc:hi 

 denies, foliis licrbaceis, raro coriiiceis, elliplicis, raro cordatis. 



Sp. 2') ad 30 e Brasilia et Madagascaria per Americam australem, Ausfraliam lM In- 

 diani dispersao. — nrewcHa R. IJr. — Trichanthn Karst. ct Tr. 



B. Flo res minimi in paniculis vel racemis lateralibus; sepda 5 oi'bi- 

 cularia, aequalia, extus tomentosa vol sericca, subcoriacea; corollae sub- 

 rotalo-infundibularis, extus scriccae vel tomenlosae, S-fidae aeslivallo 

 valvatavel indupb'cato-valvata; genitalia exserta ; pollen ConvolvuU. 



Folii structura bifacialis; cellularum membranac crassiores; spong- 

 enchymatis lacunosi cellulae magnae, bracchialae; stomata in facie 

 superiore nulla, in inferioro cellulis 2 vicinis circumdata; fasciculi 

 fibrovasales utrinquo sclerenchymalis slralo oblecli. 



Frutices alte scandentes, slabresccntcs, i nfl or escc n ti is rufo-tomejilosis vel 

 -sericeis, foliis magnis, clJipticls, coriaccis. 



14. Neuropeltis Wall. 



Flores in racemis sinq)licibus, fasciculallm axillaribus; braclea flore 

 evoluto parva, squamaefornus, in pedicello brev issimo elevala, demum 



1 



4] De divisione genoris vide p. 529. 



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