■ *; 



Figs. l-U. 



LEAF-SHEATH LEAVES WITH PETIOLAR APICES 



D 



Tacaena 



4. 



B 



Dracaena. 



Draco V 



DoTvAntne 



/I 



(--a p.-"-' 



Figs. 



m.l 



-■mk 



o 



4j3. 



Aletri 



ri5 



Bromelia^SA-c 



■- coniet- 



rassiliora 

 sepal 



10a- 



t 



11- Clematis sepal hp 



9 



A 



9 



TilUnclsia 



1-11. 



m.l. = 

 npex.) 



(Xylem, black ; pliloem, white ; fibre 



median bundle ; 



Fi-. 



, dotted; m.h,= 

 main literal bundle; /t/c. = lacuna ; .?A. = loaf-sheath region; a/^ = petiolar 



L Tip of leaf of Jhri/anthes Guilfoylei, W. M.^'lkiley (nat. size). 

 Fijr. 5. l)rac<€7ia Draco ] 2 a, tipuf loaf (nat. size); 2b, trans, sect, at b.nse of 

 apox (xl-l); /—strands of fibrea. Fig. 3. Braccena *' Duchess of York"; 3 a^ 

 trans, sect, leaf near tip ; 3 b, trans, sect, solid apex to sliow iniporfnnce of main 

 laterals {xl4). Fig. 4. Dracfenafragrans, Ker-Gawh, serif's of tran.s, sect, throuoh 



tip of leaf (X 14) ; iig, 4 d is from a second leaf. Fig. 5, Eliyia deusta, Kunth ; 5 a, 

 two views of leaf (nat. size) ; 5 b, trans, sect, apex (x23). Fig. 6. Didic/ua ehm- 

 (lestt?}ft, Tluchen. ; 6 a, two views of leaf (nat. .size); 6b-d, series of traiis. sect, 

 through upper part of leaf ( X 23) ; in the herbarium material u.=^ed, xylem and phloem 

 were not distinguishable. Fio;. 7. Aletns fannosa, L,, series of trans, sections 

 through tip of leaf (xl4). Fig, 8. Bromdia '^ macrodonta'' (=? Anauas macro- 

 donteSf E. Morren), series of tran?=*. sect, through tip of leaf (Xl4), maro-in fibrous. 

 Fig, 0. TiUandsia LescaiUei, Wriglit, series of trans, sect. tlnMugh leal-tip ( X 14). 

 Fig. 10. rassiflom incarnata, L. ; 10 a, s.^pal (nat, size); 10 b, trans, sect, sheath 

 region (Xl4) ; the asymmetry is natural; the bundles are nearly all cut obliquely; 

 10 c, trans, sect, of " cornet " ( X 23), mM. =? median bundle. Fig. ] I, Clematis sp., 



apex of sepal from ventral side to show '' cornet " (nat. size). 

 LINN. JOURN, — BOTANYj VOL. XLV, 



2l 



