|. OHARACTERS OF TRIBES AND GENERA. 
u— (€ little chests, the inner valve being the " 
lid, which, when open, has the resemblasice of gaping jaws, — 
hence the name Hiatea given to the genus by Robert Brown.* 
The genus consists of about six or seven species, found 
in the Sandwich Islands, Mexico, India, Malay, Philippine 
Islands, and China. With the exception of O. Baromete, 
which has decumbent caudex, the others are erect arbores- 
cent, the stem of C. glaucum attaining the height of 20 or ` 
more feet, 
* Caudez decumbent. $c 
Sp. C. Barometz (J. Sm.) (v v.) ; C. Assamicum (Hook) 1 
** Caudex erect, arborescent. 
C. glaucum (Hook.); C. Menziesii (Hook.) (v v.); C. — 
Chamissoi (Kaulf.) ; C. Schiedei (Schlect.) (v v.) ; C. -— : 
Linden (v v.) j : 
Oss.—Cibotiwm Baromelz is a native of China, and T S 
cultivated at Kew were introduced some time before 1834  . 
br John Reeves, who was for many years “tea Taster” at — 
Canton, for the East India Company ; he learned that this ` 
.. Fern was the origin of the fabulous story of * Barometz" 
or the * Tartarian Lamb." e 
138.—THYRSOPTERIS, Kunze (1834). 
Hook. Sp. Fil. 
Vernation fasciculate, erect, arborescent. Fronds decom- T 
pound multifid, the fertile portion contracted, forming ` ` 
- ; panicles of globose sori. Veins of sterile segments pinnate es 
= venules free, Accessory and special indusia equal, uniform, : 
constituting a calyciform cyst, including sessile compressed - 
-sporangia seated on an elevated globose receptacle. | 
"Type. Thyrsopteris elegans, Kunze. 
» * In Herb. Menzies, Brit. Mus. 
