TAB. XCIY. 
Helminthostachys Zeylanica, Hook. 
Gen. Char. Helminthostachys, Kaulf. Caupsulat subglo- 
boste, glomerate, in valvas duas subfequales deorsum longi- 
tudinaliter debiscentes: glomeruli pediceljati apice cristati, in 
spicam elongatam pedunculatam cordiformem dense con- 
o-esti. Sporoe hyalinse pnrvEe subglobosEC. Llnzoma c /as sum , 
carnosum, repens, fibrosum , fibris carnosis. Stipes simplex , 
elonqatus, apice frondosus, fronde ternata ad basin pedunculi 
veriicilluta, foliolis petiolatis pinnatis, pinnis subquinis lauceo- 
latis, maqis minusve acuminafis, minute serratis , lateralibus 
longe decurreiitibus, 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). 
Blame , En. Fil. Jav. p. 258, Wall. Cat. n. 54, Hook, et 
Greo. En. Fil. in Bot. Miscell. 3, p. 220. 
Botrychium Zeylanicum, Sw. Sgn. Fil. p. 172, Willd. Sp. PI. 
5, p. 65. 
Osmunda Zeylanica, Linn. Sp. PI. p. 1519. 
Ophioglossum laciniatum, Rumph. Herb. Amb. 6, p. 153, t. 
68" f. 3. 
Hymenostachys integrifolia, Presl, Suppl. Tent. Pterid. p. 50. 
Botryopteris Mexicana, Presl, Rel. Hank. 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, Wallicli ; 
Mergui, Griffith; Java, Blame, Thos. Lobb; Borneo, Thos. 
Lobb; Ceylon, Gardner ; Cochin, Mrs. General Walker, 
Johnston; New Caledonia, La Billardiere; Guahan, Mari- 
anne Islands, Hanke. 
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 Botry apsis Mexicana of the same author in the “Reliquiae Hsen- 
heanse — 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. 
Cent. 2. t. 91. 
