SCHIZOSTEGE. 
Hillebi'cUul, Flora of the Hawaiian Islands, 1888, p. 031. 
This generally unrecognized genus was founded on tlio character of the recc|)ta- 
cles “which are formed by intrainarginal anastomoses of two fork branches or 
l)y T-shaped expansions of simple veins.” The spores are tetrahedral, and the 
unpolished stipes traversed each by a single U-shaped vascular strand. The fertile 
margin is twice the depth of the lest of the frond, making room for a spacious 
receptacle. The indiisium is remarkably broad and searious, and very distinct 
from the body of the frond. “The transition or thinning of the green frond in 
the involucre is quite sudden and indicated outwardly by a straight line” in the 
original species; in mine this line is a very evident groove, apparently making 
the attachment a hinge. The type of the genus, »8'. hjdgatci Hillebr., was placed 
in Clicilanthes by Baker in Synopsis Filicum, p. 475; and in Pteris by Christ in 
Farnkraeiiter der Erde, p. 167, and by Diels in Nat. Pfianzenfamilien. The 
affinity to Pteris is rather the closer, but it is a very foreign element in either 
genus. The vein tips are large and hyaline. When neighboring sori coalesce the 
anastomosis of the veins is apparently imperfect. 
I am indebted to Dr. Christ for comparing my specimens with authentic 
S. lydgatei, and for sending me fragments from his specimen of this very rare 
fern. The sori of the Hawaiian and Mindanao plants are indistinguishable. In 
general aspect, S. lydgatei is near Pteris quad,riaurita, while the Mindanao species 
approach GlieilantJies ; they seem to differ in texture, also, but it is hard to judge 
this from the dried plants. 
Schizostege pachysora Copeland n. sp. 
Candice erecto, breve, valido, radices ligneas cmittejite, paleis fuscis, 
lanceolatis, sidnilatis coronato; stipitibns confertis, 30 cm. altis, flavido- 
fuscis, paleis concoloribns patentilnis vestitis, ])ediljns teretis, siirsum 
trifnreatis ; fronde 40 cm. alta, 20 cm. lata, bipinnitifida ; ])innis infimis 
])anlo deflexis, 10 cm. longis, sidiacntis, sessililms, 2/3 ad costam in 
segmentis 5—10 mm. longis, 5—7 mm. latis, ol“)tiissisimis, integris divisis, 
segmento primo basiscopico producto, falcato; pinnis medialibns aequali- 
bus, decnrrentibns et plernniqne confluentibns, apices versus integris; 
pinnis snpei’ioribus sensim diminutis in segmento apicale coadnnatis; 
lamina glabra, carnoso-subcoriacea ; vennlis immersis, in seriem nnam 
costalem alaremque, rarins in segmentis in alteram areolarum connexis; 
soris simplicis vel conflnentibns. 
Mindanao, Zamboanga, San Eamon, Copeland 1715. Ad terrain ripariam in 
montibus, alt. 700 in. 
Schizostege calocarpa Copeland n. sp. 
Candice stipiteqne eis S. pachysoim similibus; fronde 35-40 cm. alta, 
20 cm. lata, acuta, bipinnata; pinnis infimis oblique deltoideis; sequenti- 
bus lanceolatis, 10 cm. longis, 3 cm. latis, acuminatis, ad vel fere ad 
costam incisis ; pinnulis patentibus, 15 mm. longis, 4 mm. latis, obtusis, 
decurrenti-subconnexis, crenatis vel ad costidam semiineisis, carnoso- 
subcoriaceis, glabris ; rbaebi cinerea, anguste subalata ; vennlis omnibus 
liberis; soris simplicibus; indusiis scariosis, rotundatis, latissimis. 
(Tab. 12.) 
