1921] _ HOLM—CARYA AND JUGLANS 377 
flower is described as ‘‘a 3-lobed calyx,” and the pistillate as “a 
calyx of 1 sepal adnate on the ovary.” 
With respect to the flowers of Juglans, EICHLER describes the 
staminate flower (fig. 10) as consisting of two prophylla (P), which 
with the two to five perianth leaves grow together with the sub- 
tending bract; the six to forty stamens have very short, free 
filaments. The pistillate flower has a superior, four-leaved peri- 
anth; the ovary, bract, and prophylla all unite together, their 
edge being visible as an indented line below the perianth (fig. 13). 
The staminate flower, therefore, has two prophylla and a two to 
four-leaved perianth, which grow together with the subtending 
bract; the pistillate has a superior perianth of four leaves, and the 
subtending bract beside the two prophylla grow together with 
the ovary. 
As was the case of Carya, this very simple structure has been 
completely misunderstood by subsequent writers in this country. 
Rosinson and FEernaxp do not describe the staminate flower of 
Juglans in any other way than ‘‘stamens 12-40; filaments free, 
very short.’’ On the other hand, the pistillate flower is said to 
Possess ‘‘a four-toothed calyx, bearing four small petals at the 
sinuses.” 
SARGENT attributes ‘‘a perianth sessile or pedicellate, three to 
six-lobed in the axil of an adnate to an ovate acute bract free only 
at the apex” to the staminate flowers. The pistillate flower is 
described as being invested by a villous involucre adnate to the 
Ovary, and formed by the union of the anterior bract, sometimes 
free nearly to the base, and two lateral bractlets free only at the 
apex, and variously cut into a laciniate border shorter than 
the erect’ lanceolate calyx lobes inserted at the summit of the 
Ovary. 
By Brirron the staminate flower of Juglans is said to have a 
“perianth 3~-6-lobed,” and the pistillate ‘calyx 4-lobed, with 4 
small petals adnate to the ovary at the sinuses.’’ Smaxt describes 
the staminate flower in the same manner, while the pistillate is 
Said to have ‘the sepals adnate to the ovary.” 
In “Flora of the District of Columbia and vicinity,’’published 
under the auspices of the Smithsonian Institution (1919), no 
