50 
Yunnan fern, only comparable in habit to a curious Mexican 
species. 
A hasty glance through the flowering plants impresses us with 
the great preponderance of woody species, the great variety of 
trees, shrubs and lianas. Even amongst Compositae we find two 
or three trees. Leucoseeptrum is a small tree belonging to Labi- 
atae, which is almost universally a herbaceous order. The series 
of oaks and Cas/anopsis is extreme, and striking in the great 
diversity shown in foliage and fruit. Quercus Rex Hemsley, 
from Szemao is perhaps the most beautiful oak known, whether 
we regard its delicate large leaves or its magnificent acorns, the 
cups of which are two inches across. There are many peculiar 
genera, some of which are new, as Bretschneidera, Ttoa and Hartia, 
The first of these may be described popularly as a horse-chestnut 
with pinnate leaves. Attention is directed to Rhodoleia, a large 
tree with crimson flowers of peculiar structure and extreme 
beauty. Zupzdanthus is the most curious member of the Aralia 
family ; each flower has about 100 stamens and an ovary of 160 
ceils. Trevesia palmata, belonging to the same order, is re- 
markable for its enormous leaves, most variable and dzsarre in 
cutting and lobing. Dimorphic Jeaves, the signification of which 
is unknown, occur in several genera, as in the new species, 
Lespedesa diversifolia and Shuteria stnensts. The two most 
beautiful species of Zoxicera known occur in Yunna L. calea- 
rata, which hasa long spur to the corolla, and ZL. Hillds Deadlies, 
with flowers seven inches long. 
The herbaceous plants include many interesting types. Three 
of the four known genera of the primitive family Saururaceae are 
represented in the collection, Sauwrurus, Houttuynia and Gym- 
notheca ; and different stages in the development of attractive 
floral organs are well shown in the various types. Ill are des- 
titute of any perianth: one whitens the stamens ; another whit- 
ens at the time of flowering the uppermost leaf of the stem ; and 
a third develops a colored involucre of white bracts: The Cyr- 
tandraceae, characterized by dainty foliage and pretty flowers, 
are represented by about 70 species, half of which are probably 
new. Lysimachia insignis is the most remarkable species of this 
widely spread genus. 
