PAPUAN FERNS. 85 
2. C. quinatum (Hook.) comb. nova. - . 
Gymnogramme quinata Hooker Sp. Fil. 5 (1864) 152, Tab. CCXVII. 
No. 262, Ambasi. 
Reported from the Solomon Islands to Sumatra. 
This differs from the preceding species in having a hispid, chestnut stipe, in 
being smaller throughout, with the leaflets thinner and abruptly contracted below 
the apex, and the margin subtended by a single row of areolae. 
The genus is between Syngramma and Coniogramme in its characters. In the 
form of the frond it differs from either. In essentials, it also differs from 
Coniogramme in venation and from Syngramma in the absence of filamentous 
paraphyses.. 
HYPOLEPIS Bernhardi. 
1. Hypolepis sp. 
No. 168. 
The specimen is imperfect, but does not represent any Malayan species. 
RIDIUM Gleditsch. 
1. P. aquilinum (L.) Kuhn. 
No. 299, Ambaai. 
Cosmopolitan. 
Pteridium belongs with Paesia among the derivatives of Dennstaedtia. 
HISTIOPTERIS (Agardh) J. Smith. 
1. H. incisa (Thunb.) J. Sm. 
No. 229, Goodenough Bay, altitude 1,200 m. In grass. 
Pantropic and subtropical. 
PTERIS Linnaeus. 
1. P. longifolia L. 
No. 213. C. Vogel. 
Almost cosmopolitan. 
2. P. moluccana BL 
No. 12'f, Ambasi. 
Malaya to the Solomon Islands. 
3. P. deltoidea spec. nova. 
Pteris P. creticae affinis, forma deltoidea; pinnis infimis tripartitis, 
pinnaila inferiore pinnata pinnnlis" quattuor, pinnulis temiuale et su- 
periore ad basin fissis; pinnis lateralibus utroque latere una fissa et 1 
(vel 2) simplice; pinnis vel pinnulis ultimis. omnibus linearibus 5-18 
cm longis, 8 mm latis, ubi sterilibus acute non grosse serratis; soris 
medialibus. 
No. 242, Ambasi. 
An obvious relative of P. cretica, but the relative development of the lowest 
pinnae too great to permit its reference to that polymorphous species. The stipes 
are stramineous below, light-brown above. 
4. P. ensiformis Burni. 
No. 243. 
Polynesia to India. • 
