SELECTED NOTES. 285 



Fig. 8. — Capsule of Leucohrywrn glancnm. 

 . , 9. — Capsule of Splachnum vasadosuin. «, Spore-case; 6, apophysis. 

 10. — Splachnum peduncidatiim. 

 11. — Plants of Pleuridium axillare. 

 12. — Peristome of Orthotrichum rivulare. 

 13. — Peristome of Tortula marcjinata. 

 14. — Gemmae of Ulota phyllantha. 

 15. — Leaf of Tortula papillosa, with gemmae. 

 16. — Lentiform gemma of Georgia pellucida. 

 17. — Showing — «, Young plants at apex of Leucobryum glaucum 

 and b, Young plant isolated. 

 ,, 18. — Section of leaf of Polytrichum, showing vertical lamellse. 

 ,, 19. — Leaf of Fissidens osmundoides. a, Section of above through 



the basal part. 

 ,, 20, — Part of base of leaf of Dicranum spartum. 



21. — Leaf of Tortula lamellata. a, Section of same. 

 ,, 22.— Leaf of Pterygophyllum hicens, from a photograph. 



Drawn by T. S. Beardsmore. 



Notes by Various Members. 



Hairs on Leaf of Jerusalem Artichoke ( Heliajithus tuber osus) . 

 — Each of these hairs, as well as a group of cells around its base, is 

 filled with a deposit of silex. Viewed with reflected lights these look 

 like beautiful mosaic work in white enamel. The silex derived 

 from the soil must be held in solution by the sap and carried by it 

 to the surface of the leaf, where it is deposited in the hairs and in 

 the cells in connection with them. The same leaf, if viewed with 

 transmitted light, will show (though imperfectly) the connection of 

 these hairs with the fibro-vascular bundles in the leaf. A coloured 

 fluid, absorbed by the cut end of the leaf-stalk, has found its way 

 to the roots of many of the hairs, and in some few cases even into 

 the tube of the hair itself. For viewing the hairs as opaque 

 objects, throw a strong light on the surface by means of a bull's- 

 eye condenser and turn off the mirror. Any objective from 2 in. 

 to half-an-inch may be used. F. Bossey. 



Tubes of Melicerta ringens.— To see the beauty of this struc- 



Lnternational Journal of Microscopy and Natural Science. 

 Third Series. Vol. VIL u 



