733 
Seedling Anatomy of Certain Sympetalae . 
Labiatae, 
of which two species were examined : 
Phlomis fruticosa 
Galeopsis ladanuni ( 7 , pp. 379-80). 
In all these cases the seedlings were small and slender, and the transition, 
with certain variations, followed Type 3. The two genera, Phlomis and 
Ocimum (with special reference to O. bctsilicum ), were investigated by 
Dangeard (5), whose description agrees in all essential particulars with that 
of Gerard referred to above. 
Solanaceae. 
Nicandra pkysaloides, Gaert. Seedlings very small ; cotyledons shortly 
stalked, equal in size, and comparatively fleshy. There is no cotyledonary 
tube. The various aerial parts are covered with the pedicellate glandular 
hairs characteristic of the Solanaceae. 
The lamina is traversed by a rather large vascular strand which gives 
off numerous small branches (Diagram 3, Fig. 1). Near the base of the 
cotyledon this midrib consists mostly of phloem, arranged on the upper and 
lower sides of a flattened strand of tracheae, of which the middle ones repre- 
sent the protoxylem (Diagram 3, Fig. 2). As the strand enters the hypo- 
cotyl the internal and external phloem groups bifurcate, and at the same 
time the protoxylem becomes definitely exarch (Diagram 3, Fig. 3) by 
moving outwards in the cotyledonary plane. At this stage there are two 
strands of xylem with eight phloem groups, four of which are internal, the 
remaining and much larger groups being peripheral and situated on diagonal 
lines. Rearrangements continue to go on gradually ; the vascular groups 
