E XVI. Anatomy of Enhalus acoroides (Linn. f.), Zoll. By Hiruna M. Cunntneron, B.Sc. 
3 (Communicated by Prof. Percy Groom, D.Sc., F.L.S.) 
(Plate 36 and 13 Text-figures.) 
Read 15th June, 1911. 
CONTENTS, Page 
Introduction 4 lai Wes ee 2S E 355 
The Rhizome: 45.45 EA EOD VEU UEM ME Co csi Ms RN 356 
The Loaf 12... CEPR VE toca on Ex d ANLE 359 
The Root. 2.4 2380 i eda iur ee DEED E . 908 
Male and Female Inflorescenees.............uuueese 9364 
E Anatomy ofthe Braoé 4.0 is iss cen Si Sa PARTE 365 
E Anatomy of the Male Infloreseenee................ 365 
E Anatomy of the Female Inflorescence .............. 367 
INTRODUCTION. 
3 Exzar US is a submarine flowering-plant, belonging to the family Hydrocharitacere. 
- It oceurs below tide-mark along the shores of the Indo-Malayan region from Ceylon to 
Australia. 
The first description of the plant was published by Linnsus fil., under the name 
Stratiotes, the generic name (Enhalus) being given by Richard in 1811. Farther 
descriptions have been given by Zollinger, Griffiths, and Ascherson. In addition, 
Griffiths records the coarser details of the anatomy of the root-stems and leaves, Chatin 
following with a more detailed but remarkably inaccurate account of the —: 
Magnus, in describing the anatomy of the leaves, corrected a number of Chatin's errors. 
The most complete accounts are given by Sauvageau and Svedelius, the former recording 
which is buried in the soil 
oots. The leaves are borne 
They are long, green, and 
inch, and they are arranged 
but is covered with a great 
6 inches long. 
E ese are the persistent bast-fibres of decayed leaves. les Halophila 
each of the dorsal, but not of the ventral, leaves. T — : tidy eser 
Cribed by Professor Bayley Balfour. The rhizome is ran Sisipius con aol 
"rangement of the roots is not so definite as 1s m 36 
SECOND SERIES.—BOTANY, VOL. VII. 
