Some of the stamens are inserted between the bracts, in an apparently axillary position, while others are grouped about the apex of the axis.
The aorta gives off a large branch (the anterior aorta) very near its origin, from which arise - first, the left axillary, and afterwards the right axillary and the two carotid arteries.
Another view is to regard the cone as an inflorescence, each carpellary scale being a bract bearing in its axil a shoot the axis of which has not been developed; the seminiferous scale is believed to represent either a single leaf or a fused pair of leaves belonging to the partially suppressed axillary shoot.
B, Petiole with axillary bud.
Arising as a long tendon from the sterno-scapular ligament, it passes the axilla by means of a fibrous pulley, accompanies the axillary vessels and nerves along the humerus, and is inserted by a few fleshy fibres on the base of the last two or three cubital quills.
The flowers are white, axillary and slightly fragrant, - often two or three together on separate pedicels.
One argument that has been adduced in support of the axillary bud theory is derived from the Palaeozoic type Cordaites, in which each ovule occurs en an axis borne in the axil of a bract.
Thus, in axillary tetramerous flowers (fig.
In Pinus the only leaves produced on the main stern and the lateral shoots are scales, the acicular leaves of the tree growing from axillary shoots.
Tatarica, of similar habit, both European, are amongst the oldest English garden shrubs, and bear axillary flowers of various colours, occur Honeysuckle.