184 BOTANICAL GAZETTE [AUGUST 
extreme anatomical diversity. The cone-scale, that fruitful organ for mor- 
phological discussion, shows distinctly its double nature in containing two dis- 
tinct vascular systems, which are given off separately from the axis, the system 
of the seminiferous-scale portion having an inverse orientation of its elements. 
Fourteen species are recognized, five of which belong to the subgenus Chame- 
cyparis. The North American species are as follows: C. Benthami, of 
Central America, Mexico, and adjacent United States, and under which 
Greene’s C. Arizonica appears as a variety; C. macrocarpa, of California, 
under which Watson’s C. Guadalupensis appears as a variety ; C. Goveniana, 
of California; C. Macnabiana, of California; C. thurifera, of Mexico; © 
thyoides (Chamecyparis spheroidea, Thuya spheroidea), of the Atlantic 
coast; C. Nootkatensis (Cham. Nutkensis, Thuya excelsa), of the Paci 
region from Oregon to Alaska; and C. Lawsoniana (Cham. Lawsoniana), of 
California and Oregon.—- J. M. C. 
Mr. F. W. KEEBLE, during a brief stay in Ceylon in 1894, made a very 
considerable number of interesting observations, some of which he presents 
in a paper published in the Transactions of the Linnean Society of London, 
and more of which he promises to give in subsequent papers. In the present 
paper he sets down some of his observations on the Loranthacee native in 
Ceylon. These green, semi-parasitic phanerogams have been attracting — 
more than usual attention of late, as is shown by Van Tieghem’s numerous 
publications concerning them, as well as others by less well known authors. MG. : 
Keeble’s paper concerns itself first with the pollination of the flowers, which : 
are large and conspicuous in many species, and deviate more or less from 
regular type. To the observations of Wallace and others, that the & ison 
around it, apparently derive a double advantage. The birds which fi 
these flowers, being larger and less accurate in their moveme 
nating insects, are likely torupture the delicate parts more or less, 40°” — 
even when the corolla is already split and the stamens are arranged ini \ 
though of course to a smaller and less damaging extent in such oe 
Furthermore, their beaks, when these come into contact with the anthers 
pushing’ into the flower, become dusted with pollen only upon the pangs 
and deposit some of their pollen upon the protruding style of the next! 
visited before pushing against its anthers. In those species whi 
wise tubular corolla is cleft, the stealing of nectar by birds which bite in 
corolla-tube without cross-pollinating is materially less than in other oi 
A very considerable number of species have flowers which ope? oN 
12 . * * 1 _ 1896+ 
Transactions Linnean Society of London, 2d Series, Botany 5° [May J 
