4- DESCHIPTIVE CATALOGUE 



then became extinct through a parthenogcnetic habit, which he 

 detects in B. Morierei. 



The following slides are in the general collection : 



V. 8398. Slightly oblique longitudinal section, 5*5 x 2-5 cm., 

 through cone, with fragments of surrounding bracts. 

 The seeds are poorly preserved and partly pulverised. 

 The cone-receptacle is present and shows the attach- 

 ment of the seed-stalks, intcrseminal scales, and bracts 

 rather well. The bract-tissues are beautifully shown 

 in longitudinal direction, the large gum-canals sur- 

 rounded by irregular scalariforin elements are present 

 in great numbers. 



V. 8399. Figured by Carruthers, Trans. Linn. Soc. vol. 26 

 (1870), pi. lix, fig. .'*. Very slightly oblique longi- 

 tudinal section, 6 x 2-5 cm., through cone with parts 

 of surrounding bracts. A piece of the section has 

 broken out since it was figured by Carruthers, but this 

 is only in the seed-stalk region ; the seeds and the 

 cone-receptacle are perfect. The tissues are rather 

 blurred by the opaque mineral granules, but all the 

 details described by Carruthers can be well made 

 out. 



V. 8400. Figured by Carruthers, Trans. Linn. Soc. vol. 26 

 (1870), pi. lix, figs. 2 & 6 ; Solms-Laubach, Bot. Zcit. 

 1890, pi. x, fig. 6, & Ann. Bot. 1891, pi. xxvi, fig. f>. 

 Oblique section through seed- stalks, seeds, and scale- 

 arid bract-fragments. Two of the seeds in this are 

 cut more nearly through the micropyle than is 

 generally the case. Bract-tissues and ramenta in 

 section can be well seen. 



V. 8401. Figured by Carruthers, Trans. Linn. Soc. vol. 26 

 (1870), pi. lix, figs. 1 & 9; pi. Ix, figs. 6, 8, 10. 

 Parts refigured by Solms-Laubach, Bot. Zeit. 1890, 

 pi. x, fig. 5 & Ann. Bot. 1891, pi. xxvi, fig. 5. Oblique 

 section through seeds, seed-stalks, and sterile sur- 

 rounding bracts. As Carruthers notes, the bracts are 

 cut in good transverse section at the base of the slide. 



