^30 DR. A. B. KENDLE— SYSTEMATIC 



N. tenuifolia, Naves & F. Vill. = N. palustris. 



N. tenuis, A. ]Jr. = N. indica. 



N. tenuissima, A. Br. 



N. ternata, Roxb. ex GrifP. = N. minor? 



N. tetrasperma, Willcl. = N. marina. 



N. valisnerioides, Griff. =N. graminea. 

 jST. Welwitschii, Rendle. 

 N. Wrightiana, A. Br. 



var. laxa, A. Br. 



Sclerocarpus ohliquus, C. A. Weber =N. marina. 



EXPLANATION OF THE PLATES. 



a, anther; p, perianth; pe, pedicel; s, spathe ; st, stigma; v, leaf-sheath. 



Plate XXXIX. 

 Najas marina. (Figs. 1 to 30.) 



1. Young ovary with three stigmas, the ovule directed horizontally. X 15. 



2. „ „ with two stigmas, slightly older than in fig. 1, with almost anatropous ovule. X 13. 



3. Ovary ready for pollination, x 12. One stigma appreciably shorter than the other two. 



4. Ovary after fertilization, x 9. 



5. Male flower protruding from leaf-sheath. X 6. 



6. „ „ after removal of spathe. x 6. 



7. „ „ „ „ perianth, showing the four-celled anther, x 6. 



8. Intravaginal scales. X 20. 



9. Leaf of var. recurvata. x 2. Specimen from Buffalo (Clinton). 



„ „ Arabia [Ehrenberg). 



, „ Caracas {Gollmer). 



,, „ Damietta [Sieber). 



, ,, Oahu (^Menzies). 



, J, Prussia [Caspary). 



., „ California (Orcutt). 



16. Tip of shoot of var. grossedentata. x 3. Specimen from China {Staunton). 



17. Seed of N. marina form a from Polish specimen {Woloszczak). >c 8. 



18. „ „ „ „ Japanese specimen [Maximowicz) . x 7. 



19. „ „ „ j8 from specimen from Paris [Brongniart). x 7. 



20. „ „ „ „ ,, J, j^ Germany {Muench.). 



21. Fossil seed from Cromer forest-bed (preglacial), side view. (From sketch supplied by Mr. Reid.) 



22. Portion of testa of same much enlarged. Do. 



23. Fossil seed from Cromer forest-bed, front view. Do, 



24. Portion of testa of recent seed. Much enlarged. 



25. Seed of N. marina form 7 from Cashmere {Young), x 7. 



26. „ „ var. recurvata. x 7. 



27. „ „ var. Ehrenbergii. x 7. 



28. „ „ var. angustifolia. x 7. 



29. „ „ var. intermedia, x 7. 



30. „ „ var. mexicana. x 7. 



Najas indica. (Figs. 31 to 45.) 



31 . Side view of leaf-sheath, x 20. From type-specimen of Caulinia indica, Willd. in Herb. Berlin. 



32. Leaf-apex from same specimen, x 30. 



10. 



)} 



var. 



Ehrenbergii. x 2. 



11. 



>) 



var. 



latifolia. x 2. 



12. 



i) 



var. 



muricata. x 3. 



13. 



}} 



var. 



angustifolia. x 2. 



1 I. 



j> 



var. 



intermedia, x 3. 



15. 



}> 



var 



calif or nica. x 2^. 



