1913] CURRENT LITERATURE 471 
the Tertiary age, and that the center of distribution of woodland forms has 
been the forests of central Europe, while ruderal myrmecochorous forms have 
radiated from the Mediterranean region. The elaiosomes, in his opinion, 
have originated in many ways quite aren of the purpose they now 
serve as factors in distribution—Gro. D. FULLER 
Anisophylly.—In Strobilanthes onisophitus Ficpor,?3 experimenting to 
discover the cause of the development of isophyllous shoots, is satisfied that 
it is a reversion to juvenile form cetth eciive show no anisophylly until 
they have attained considerable size, and he thinks that it should be possible 
to prolong isophyllous developpient indefinitely. He agrees with BosHART* 
that good nutrition t phylly, but takes exception to his state- 
ment that anisophylly is to be explained through dorsiventrality. BosHArT’s 
in a more recent paper lays emphasis on his former points, such as the asym- 
metry of the growing point of anisophyllous shoots and the very slight 
effect of gravity and light. He thinks that the latter factor may affect ani- 
sophylly through increasing or ee the vigor of the shoot, the weaken- 
ing favoring asymmetry. He on the contrary, light exercising a direct 
influence upon the anisophylly 23 eden species of Selaginella and Lycopodium. 
Anisophyllous rosettes in various species of Sempervivum have been experi- 
mentally shown by DoposcHec-UHLAR™® to result from an inclination of the 
stem axis toward the horizontal, but whether the response was effected by 
gravity or light he was unable to determine. The anisophylly seems to disap- 
pear toward the close of the growing season and to be renewed early the follow- 
a spring. The phenomenon in nature is closely associated with the crowded 
ouping of young plants about the te rosette in the characteristic multi- 
riicatin by offshoots.—Gero. D. FULLE 
Morphology of Agathis.—Eames” has investigated the Kauri, the famous 
timber tree of the Australasian region. Our knowledge of the morphology 
of the araucarians has lagged behind that of the other coniferous tribes, so that 
this contribution is very timely. An outline of the results is as follows. Pol- 
lination occurs a year after the appearance of the ovulate strobili, and fertiliza- 
R, W., Das Anisophyllie-Phaenomen bei Vertretern des Genus Strobi- 
lanthes Blume. Ber. Deutsch. Bot. Gesells. 29:549-558. 1911. 
4 BosHarT, K., Beitrige zur Kenntnis der Blattasymmetrie und Exotrophie. 
Flora 103:91-124. 1911 
*s BosHart, K., Uber die Frage der Anisophyllie. Ber. Deutsch. Bot. Gesells. 
30°527-33.. 19%2. 
2° DoposcHEG-UHLAR, J., Die Anisophyllie bei Sempervioum. Flora 105:162-183. 
IQI3. 
77 EaMES, ARTHUR J., ‘aia estima of Agathis australis. Ann. Botany 
2721-38. figs. 92. pls. I-4. 
