341 



4. The fused anthers with their glands seen from inside, the anthers open 



extrorsely. r 



5. The anthers partly in section, more highly magnified, showing the mode 



ot tusion and the extrorse dehiscence, 



C. E. macranthum, flower with long stamens. 



6. Flower showing the long stamens, with relatively small anther- 



glands x 1£. 



7. Stamen, back view, showing the attachment of the filament 



8. Stamen, front view, showing the introrse dehiscence of the anther. 



D. E. macranthwm, flower with short stamens. 



9. The short stamens are free, have stout filaments, and the anthers open 



introrsely x 1£. 



10. An anther showing introrse dehiscence. 



E. and F. E. primnlaeflorum. * 



11. A short-styled flower X 14. 



12. A single stamen, showing she mode of attachment of the filament and 



the elongated apical anther-gland. 



13. The anthers of the long-styled flower, showing the lateral fusion X 2. 



14. As fig. 13 x 6, the anthers are syngenesious and open extrorsely, the 



filaments are very short and the anther-glands are elongated, 



15. The style and ovary of the long-styled flower. 



G. E. grande, var, homostylum. 



16. The flower showing the anthers on a level with the stigma X 1£. 



17. A back view of an anther. 



18. Anther, front view showing dehiscence. 



XLV -NOTES ON CHIRONIA AND ORPHIUM. 



Some divergence of view has obtained as to the limitation of the 

 Gentianaeeous genera Chironia, Linn., and Orphium, E. Mey. As 

 to Chironia, authors are not alwaj'S in harmony in their descrip- 

 tions of certain species ; sometimes, even when the descriptions 

 a gree, the citations are not in accord. 



While the delimitation of the species is, as a rule, easy, biblio- 

 graphical difficulties occasionally leave the incidence of particular 

 names so uncertain that it has been necessary to ascertain the 

 identity of the actual specimens, when these exist, that have been 

 made use of by different authors. 



The material studied in attaining this end has included, in 

 addition to the specimens in the Kew Herbarium, those preserved 

 in the following collections -.—Berlin (including Herb. Will- 

 denow) ; Dr. Bolus ; British Museum (including Herb. Sloane) ; 

 Brussels ; Cambridge ; Mr. De Candolle ; Dublin (including Herb. 

 Harvey); Edinburgh; Geneva (Herb. Delessert) ; Goettingeii ; 

 Leiden ; Linnean Society (Herb. Linnaeus) ; Liibeek ; Oxtord ; 

 Paris (including Herb. Lamarck) ; Stockholm (including Herb. 

 p - J. Bergius); Transvaal (Dept. Agric. Herb.); Upsala (mclud- 

 mg Herb. Thunberg) ; Vienna (Hof-Museum) ; Zurich. 1 he 

 warm thanks of Kew are due to the keepers and owners <*«»«* 

 Public and private collections for the readiness with which help 

 has been accorded. 



The results of this study, as regards bibliography and di 

 Jon, will be found briefly stated in the concluding part of bn 

 Wiiselton-Dyer's Flora Cap***, vol. iv., sect. 1. Exigencies of 

 space forbid a full statement there of the evidence on which these 



W 



