Ata L / | 
Aw pt) ees ; v 
JAN 99 1999 
Some Problems of Reproduction: a Comparative 
Study of Gametogeny and Protoplasmic Se- 
nescence and Rejuvenescence. 
Marcus M. Hartog, M.A., D.Sc., F.L.S., 
Professor of Natural History in the Queen’s College, Cork. 
TABLE oF CONTENTS. 
as) 
= 
Q 
& 
I. Introductory 
Scope of Inquiry 
Bibliography : 
Terminology and Notation . 
IL. Typical Agamic Reproduction 
Monadinez 
Myxomycetes 
Acrasiex . ; - : 
ILI. The Modes of Karyogamy, 
illustrated chiefly from the 
Protophytes . ; : 
1. Isogamy, multiple and 
binary : 
(Euisogamy, Hxoiso- 
gamy) 
2. Anisogamy 
3. Hypoogamy . 
4, Oogamy 
5. Siphonogamy ‘ 
IV. Comparative Gametogeny in 
the Vegetable Kingdom . 
A. Protophytes and Cellular 
Alge . 
VOL. XXXIII, PART I.—NEW SER. 
conNINN OD Ow Ww 
12 
PAGE 
Cheetophoracez and Ulva- 
cee 12 
Ulothrix 12 
~ Cylindrocapsa 13 
Chlamydomonas 13 
Desmids, Conjugates, and 
Diatoms 13 
Volvox, Eudorina . 14 
Oedogoniacez salto 
(Beak formation com- 
pared with that of 
zoosporange in Chyt- 
ridiez and Saproleg- 
niee) 15 
Coleochetex . 16 
Melanophycez 16 
Fucacer 16 
B. Apocytial Forms iG 
1. Green or Algal Types 17 
Cladophora 17 
Siphoneze 18 
Spheroplea 19 
Vaucheria . 20 
