AND SPECIES HYBRIDS WITHIN THE GENUS SACCHARUM 105 
by GOLINSKkI !) and in that of Zea Mays by GUIGNARD 2). The anthers 
have two thecae, each with two microsporangia. The wall of the 
thecae consists of four celllayers: epidermis, endothecium, a, la- 

Fig 2. 
Fig. 2. Median section of a young ovule with embryosac-mothercell of Saccharum 
officinarum (Formhybrid 247 B) x 380. 
ter on obliterating, layer of cells and tapetum. The tapetum surrounds, 
in young anthers, the pollenmothercells in such a way, that each pollen 
mothercell touches the tapetum at one side (comp. fig. 9 and 10 p-12r% 
The sugar-cane inflorescence is placed terminally at the top of the 
stem. The vegetative growing point has been transformed already into 
1) S. J. GoLinsk1, Ein Beitrag z. Entwicklungsgesch. des Androeceums und des 
Gynaeceums der Gräser. Bot. CBI. Bd. LV. 1893, p. 1. 
*) L. GUIGNARD, La double fécondation dans le Mais. Journ. de Bot. 1901. 
