Cossonia. • 1^1 



B. Articulus superior i — 2-spermus, interdum inanis. 



a. Articulus superior locellis superpositis (i — )2 excellens \ 6. Eremophy ton BegninoL 



b. Articulus superior locellis collateralibus 2- vel l-lo- 

 cellatus. 



a. Articulus superior 2-locellatus. 



•I. Articulus inferior 2 — 1 2-spermus, major quam 



superior \7. Morisia Gay. ■ 



H. Articulus inferior 2-spermus, minor quam su- 

 perior 18. Guiraoa Coss. 



ß. Articulus superior 1 -locellatus. 



I. Articulus inferior locellis \ — 4 superpositis in- 



structus 19. Gordylocarpus Desf. 



II. Articulus inferior locellis juxta positis 2- vel \- 

 locellatus vel obliteratus, 



\. Articulus inferior 6 — 8-spermus ..... tO.'Fezia Pitard. 

 2. Articulus inferior 1 — 3-sperm.us vel sterilis. 

 * Semen in articulo superiore pendulum. 

 f Articulus inferior deficiens. Cotyledones 



marginibus introflexis 21. Calepina Adans. 



ff Articulus inferior ± evolutus.. Cotyle- 

 dones marginibus non introflexis. 

 Q Articulus superior globosus, laevis 

 vel rugulosus. Stigma sessile. Septum 



nullum 22. Cramhe L. 



(30 Articulus superior ellipsoideus, tuber- 

 culatus, in rostrum attenuatus. Sep- 

 tum initio exstans 23. Äremena Coss. et Dur. 



** Semen in articulo superiore erectum. 

 f Sepala persistentia. Articulus superior 



echinatus . 24. Muricaria Desv. 



ff Sepala caduca. Articulus superior cos- 

 tatus vel sublaevis. 



O Articulus inferior superne exappen- 

 diculatus. 



/S Articulus superior non auricu- 

 latus. 



X Articulus superior crassior 

 quam inferior, circuitu teres. 



Petala flava 25. Rapistrum Crantz. 



X X Articulus superior inferiori 

 aequicrassus, tetragonus. Pe- 

 tala alba 26. Didesmus Desv. 



/\/\ Articulus superior auriculatus . 27. Otocarpus Dur. 

 (30 Articulus inferior superne appen- 



dicibus duabus armatus 28. Ceratoen&mum Coss. 



[öt Bai. 

 12. Cossonia Durieu. 



Cossonia*) Durieu de Maisonneuve in Ann. sc. nat. Bot. 3. ser. XX. (1853) 82, 

 t. 6; Coss. Illustr. Fl. atlant. Fase. II. (1884) 52, t. 36, 37 et Compend. Fl. atl. II. 

 (1885) 95, 222; Prantl in Engl.-Prantl, Pflzfam. III. 2. (1890) 182; Dalla Torre et 

 Harms, Gen. Siphonog. (1901) 186; v. Hayek in Beih. Bot. Centralbl. XXVII. 1. Abt. Heft 2 



*) »Genus Cossonia quod mihi, in aeternum amicitiae nostrae Signum, semper defletus 

 coUaborator Durieu de Maisonneuve dicatum voluit . . .« (ex E. Cosson). 



