CIBOTIUM BARANETZ J. SM., AND RELATED FORMS. 
By H. Christ. 
{Basel, Switzerland.) 
In treating the oriental forms of the genus Cihotiumy Hooker and 
Baker^ Synopsis Filicum^ and C. Christensen, Index Filicum 183^ have 
recognized the Sandwich Island species as distinct, reducing the others 
to one species, Cihotium Barometz (typographical error for Baranetz, 
see Kunze, Suppl. Schkuhr. 1 : 63, in note). Kunze, however, separated 
from this collective species two forms, C. glaucescens Kunze, 1. c, Tab, 
81j and C. Cumingii Kunze, 1. c, 64. As a matter of fact the recogni- 
tion of several subspecies is well justified, and from an examination of the 
material in my herbarium I recognize the following: 
Cibotium Baranetz (Linn. Polypodlum, erroie calami Barometz) J. Sm. in 
Journ. Bot. 1 : 437. 
Pinnulis fertilibus 3 cm. latis, usque ad costam incisis, segmcntis lan- 
ceolato-falcatis, acutis, 1 cm. longis, subintegris aut parce .serratis, sinubus 
angustis separatis, rhachibus costisque floccoso-araneosis ; soris utroque 
costulae latere hinis rarius teTiiis aut quaternis basi segment! insertis, 
minutis, non prominentibus, a costa aliquantulum remotis, subobliquis 
sed margini segmenti subparallelis, 1 mm. latis; valvis inaequalibus (i. e., 
externa majore, cupulam semigiobosam formante, interiore angustiore, 
rotundato-ovali) tenuitcr coriaceis, flavo-brunneis nee pruinosis. 
Hab, Assam, Makum forest, [D. Brandis 1397). Tonkin frangais, {P. Bon 
3971). Annam, Prov. Quang Binh, {P. Cadiere 22). Bujong, Malacca, {Ridley 
9532). Hongkong, {Faher) ; Happy Valley, {Warhurg). China, Futschau, {War- 
hurg) ; Tunkin, [Faher 1904) ; Yunnan, Mengtzo, {Henry 0418) ; Szoniao, 
{Henry 11739). Formosa, {Fauric 087, G77) ; Warhurg; Tamsui, {Henry 1385), 
LiuKiu, {Warhurg.) 
The typical form, widely distributed in tropical Asia, on the one hand from 
North East India through South China to Formosa and Liu Kiu, and on the 
other hand to Malacca, Tonkin and Annam, usually acaulescont, but found by 
Henry in Yunnan with stems 8 feet high. t 
Cibotium Assamicum Hook. Sp. fil. 1: 83. Tah. 19 B. 
Pinnulis usque ad 23 mm. latis, usque ad costam incisis, segmentis 
fertilibus lineari-lanceolatis, acutis, falcatis, 12 mm. longis, 2.5 mm. latis, 
manifeste dentatis, sinubus angustis separatis, rhachi subglabra, costis 
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