2 jo Wilson— The Mucilage- and other 
with their cotyledons still held firmly together by the seed- 
coats, had respectively five and six mucilage-glands in their 
axils. The depth of the gland-bearing cavity formed by the 
fused bases of the cotyledons is very considerable by the time 
the first leaves appear (Fig. 60, ms). 
Statice. 
A seedling Statice duriuscula not yet quite liberated from 
the seed-coats had nine mucilage-glands. Two of these 
showed points of interest, the glandular cap being divided 
into four by cross walls evidently continuous throughout its 
entire depth, and also having an inner circular division 
(Fig. 69). Both features are characteristic of Mettenian 
glands. Two seedlings of S. spicata , about to burst through 
the soil, but still with their cotyledons close together and curved 
over to one side, possessed seven or eight mucilage-glands. 
Many glands in an example of ,S. tatarica of the same age 
showed a multiplicity of basal cells (Fig. 64). In another, 
above ground, with the cotyledons commencing to separate, 
very many Mettenian glands were found possessing a similar 
condition of the basal cells. A like irregularity occurred in 
mucilage-glands of S. Thouini , which species displayed w'ell 
the arrangement of the glands at the base of the cotyledons 
whether in vertical (Figs. 65, 66 ) or in transverse section (Fig. 
67 mg). Mettenian glands are clearly seen on the margins 
of the young cotyledons, e. g. in S. sinensis . An advanced 
seedling of vS. sinuata having one leaf about half an inch in 
length, and the other an eighth of an inch, had five mucilage- 
glands in the axil of the former and three in the axil of the 
latter. The other species of Statice examined do not call 
for special remark. 
I11 no case were Mettenian glands seen on the hypocoty- 
ledonary axis of Armenia or Statice. 
Plumbago. 
The cotyledons of Plumbago zeylanica (Fig. do, a) are very 
distinct from those of Statice and Armenia in size, form 
