WALNUT 239 



(/3) The % flowers in short tufted or spicate 

 inflorescences; not in pendent catkins. 



* The ^ flowers in cylindroid, uninterrupted, 

 pendent catkins, which are sessile at the 

 base of the young shoots : each scale 

 bears about 10 20 stamens surrounded 

 by about three perianth segments, sub- 

 tended by a couple of bracteoles, all fusing 

 with the scale, like lappets. The 9 flowers 

 in short, stiff, erect spikes of 2 3 or more, 

 and terminating the current shoots. Each 

 flower of the $ catkin subtended by a 

 small double scale (bracteole) which fuses 

 with it below. 



Juglans regia, L. Walnut (Fig. 76). Large tree, 

 with grey bark and pinnate leaves, aromatic, and with 

 chambered pith ; flowers moncecious and anemophilous. 



Male catkins sessile and pendent at the base of the 

 young shoots, developed from buds of the preceding 

 summer; dense-flowered, greenish, cylindric, 10 15 x 2 cm. 

 The (/ flower consists of about 10 20 (6 40) stamens, 

 fewer in the upper, more in the lower, with 2 5 perianth 

 leaves, and 2 bracteoles, all adnate to the bract (catkin- 

 scale) and with no trace of ovary. Female flowers in groups 

 of 2 3 or more (rarely up to 15 20 or more), in spikes 

 terminating the current year's shoots ; green, with purplish 

 stigmas : anemophilous. 



The $ flower consists of a 1-celled ovary of two 

 carpels with epigynous and adherent 4-lobed perigone, 

 and 2 fused lateral bracteoles, subtended by the bract 

 (catkin-scale). Ovule 1, basal, straight. Stigmas 2, blunt, 

 papillose. Fruit drupaceous, sub-globose, pointed, green 

 with glandular dots, darkening to brown when bruised. 



