Nephrolepis x pseudobiserrata Miyam.,

Hovenkamp PH & Miyamoto F, 2005, A conspectus of the native and naturalized species of Nephrolepis (Nephrolepidaceae) in the world, Blumea 50, pp. 279-322: 313-314

publication ID

HovenkampMiyamoto2005

persistent identifier

http://treatment.plazi.org/id/9AEAB335-2D27-81F6-B85A-03F230C2080E

treatment provided by

Donat

scientific name

Nephrolepis x pseudobiserrata Miyam.
status

hybr. nov.

26. Nephrolepis x pseudobiserrata Miyam.  , hybr. nov.

N. biserrata  × N. brownii  . Planta hybrida, differt ab N. biserrata  sqamis stipitis et rachibus ovato-lanceolatis valde numerosis adpressis margine ciliatis, pinnis basibus supernis auriculatis; ab N. brownii  soris submargine, indusis majus rotund-reniformibus, pinnis inferior vix reductis, textura laminae coriaceior. - Typus: Miyamoto & Nakayama 1444 (holo TUAT; iso BISH, BM, K, MICH, NY, TAI), Ryukyu Islands, 11 March 1985. 

Plants epiphytic or terrestrial. Rhizome erect to ascending, scales densely set, narrowly ovate, 6-9 by 1.8- 2 mm, dark-brown, lustrous, margin densely ciliate. Stipes 30-50 cm long; basal scales appressed, narrowly ovate, 5-7 by 1.3- 2 mm, centrally dark-brown, lustrous, margin, pale brown, ciliate. Lamina lanceolate; pinnae 40-70 pairs, linear, 3-12 by 1-2.5 cm, margin dentate, acroscopic base auriculate, basiscopic base rounded or cuneate. Indument. Rachis scales dense, appressed, 2-4 by 0.3-0.4 mm. Sori submarginal, indusia round-reniforme. Spores abortive.

Distribution - Ryukyu Islands, but may be found elsewhere as a result of the expansion of the range of N. brownii  .

Specimens examined:

JAPAN. Ryukyu Islands: Ishigaki Isl., Sukieda-Yoshihara , 30 m: Miyamoto & Nakayama 1444, 11 March 1985;  Miyamoto & Nakayama 1443,  1446,  1447,  1449-  1451,  1454 (all BISH, BM, MICH, 

NY, TAI, TUAT);  Ishigaki Isl., Ishigaki city, Mt Banna-dake, 80-100 m, Miyamoto & Nakayama 1189-1203 ( TUAT). 

TUAT

TUAT

BISH

BISH

MICH

MICH

TAI

TAI