76 : BOTANICAL GAZETTE [JULY 
of Stachytaxus, and by implication for the similar relationship of Palissya. 
The only real evidence for the affinity of these two genera with the Taxineae _ 
seems to rest on the possible presence of an epimatium in connection with the — 
seeds. It seems not improbable that they are really representatives of an arau- 
S 
i 
7s 
of the genera under discussion. Present indications are that all the mesozoic _ 
conifers will ultimately be arranged either under the Abietineae or the Araucari- 
neae in the broader sense.—E. C. JEFFREY. 
Orchid fiowers and formative stimuli.—Firtrinc’s work on the effect of polli- 4 
ist 
the pollen from which this substance has been removed, the effects of the pollen 
sults as the active substance. This is not due to the substance secreted D 
the tube or carried down from the pollen grain, but to an unknown factor- 
R. Catiin Rose. 
A new case of apogamy.—Burmannia coelestis, as described by ERNST, 
furnishes a case of apogamy somewhat different from any hitherto reported. 
From the cells of the egg apparatus of an eight-nucleate embryo sac with diploid 
as is already known to be the case in most apogamous forms previously descri 
No synapsis stage or heterotypic mitosis was observed. The number of chromo- 
somes was not determined, but is greater than in normally fertilized species 
Burmannia. The anticipated irregularities in the pollen were found, and th 
18 Bot. GAZETTE 47:479. 1909. 
19 FITTING, H., Weitere Sica captain Untersuchungen an ig 
deenbliiten. Pastor t. 23245~267. 16 
° Ernst, A., Apogamie bei ek coelestis Don. Ber. Deutsch. Bot 
peck 27% ea pl. 7. 1909. 
