TAB. XCIV. 
Helminthostachys Zeylanica, Hook, 
Gen. Char. Helminthostachys, Kaulf. Caupsulce subglo- 
bosae, glomeratae, in valvas duas subjequales deorsum longi- 
tudinaliter dehiscentes: pedicellati apice cristatij in 
spicam elongatam pedunculatam cordiformem dense con*- 
gesti. Sporoe hyallnae parvse subglobosae. — Rhizoma crassum, 
carnosuirij repens, Jibrosum, fibris carnosis. Stipes simplex, 
elongatus, apice frondosus, fronde ternata ad basin pedunculi 
verticillata, foYioXm petiolatis pinnatis, pinnis subquinis lanceo^ 
latis, magis minusve acuminatis, minute serratis, lateralibus 
longe decurrentibus, terminali libera, 
Helminthostachys Zeylanica. 
Helminthostachys Zeylanica, Hook, Gen, Fil, t. 47, Presl, 
SuppL Tent, Pterid. p. 59. 
Helminthostachys dulcis, Kaulf, En. Fil. 28, t. 1, f. 1 (spike). 
Blume, En, Fit Jav, p. 258, Wall. Cat, n, 54, Hook, et 
Grev, En. Fil. in Bot. Miscell. 3, p. 220. 
Botrychium Zeylanicum, Sw, Syn. Fil. p. 172, Willd. Sp. PI. 
5, p. 65. 
Osmunda Zeylanica, Linn. Sp. PI. p. 1519. 
Ophioglossum laciniatum, Rumph. Herb. Amh. 6, p. 153, t. 
68, f. 3. 
Hymenostachys integrifolia, Presl, Suppl. Tent. Pterid. p. 50. 
Botryopteris Mexicana, Presl^ Rel. Hcenk. 1, p. 76, t. 12, f. 1. 
Hymenostachys crenata, Presl, Suppl. Tent, Pterid. p. 60. 
Hab. Malayan and Molucca islands, frequent; Amboyna, 
Rumph; Luzon, Cuming, n. 39; Tavoy and Bengal, Wallich\ 
Mergui, Griffith; Java, Blume, Thos. Lobb; Borneo, Thos. 
Lobb; Ceylon, Gardner; Cochin, Mrs. General Walker, 
Johnston; New Caledonia, La Billardiere; Guahan, Mari- 
anne Islands, Hcenke. 
Of this remarkable Genus there is but a solitary species known: 
notwithstanding that Presl makes three species out of that dis- 
tributed by Cuming from Luzon. One of these is the same as 
the Botryopsis Mexicana of the same author in the ‘‘Reliquiae Haen- 
heanae — afterwards, on finding that it was not a Mexican plant, 
and a Hymenostachys, the name was changed to H. crenata. The 
figure is a very good representation of the true H. Zeylanica, save 
the reticulated venation, which is no doubt occasioned by the 
ingenuity of the artist. 
Tab. XCIY. Fertile plant of Helminthostachys Zeylanica, Hook. ; 
natural size. Fig. 1. Portion of a sterile frond, showing the vena- 
tion. /. 2. Portion of a fertile spike, with clustres of capsules ; 
and /. 3. single cluster of capsules with its crest ; all more or less 
magnified. 
Cbutt. 2 . X. 94 . 
