Nephrolepis x hippocrepicis 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: 312-313

publication ID

HovenkampMiyamoto2005

persistent identifier

http://treatment.plazi.org/id/8CABB571-A5BD-0A7A-F89E-CD4ED8FFABE2

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scientific name

Nephrolepis x hippocrepicis Miyam.,
status

hybr. nov.

23. Nephrolepis x hippocrepicis Miyam.,  hybr. nov.

Planta hybrida, differt ab N. cordifolia  squamis stipitis margine ciliatis lineo-lanceolatis; ab N. biserrata  pinnis triangularis, supernis latis auriculatis, indusis lunulatis vel reniformis. Sporae abnormales et abortivae. - Typus: Miyamoto & Nakayama s.n. (holo TUAT; iso B, BISH, BM, K, MICH, NY, P, TAI), Ryukyu Islands, 5 March 1985. 

Distribution - Ryukyu Islands, possibly elsewhere where the two putative parents occur together.

Note - Putative hybrid between Nephrolepis cordifolia  and N. biserrata  . This hybrid is very similar to N. exaltata  , and one specimen was in fact identifed by Nauman as such. However, N. exaltata  does not occur in Asia. Nephrolepis x hippocrepicis  can be distinguished from N. biserrata  by the distinctly triangular pinnae with auriculate acroscopic base, from N. cordifolia  by the narrower sinus of the indusia and the ciliate stipe scales. The spores of all specimens examined are abnormal. A specimen with a somewhat similar morphology was collected in Thailand ( Umaporn Intern s.n. 1999, Doi Sutep near Puping Palace, L). 

Specimens examined:

JAPAN. Ryukyu Islands: Okinawa Island, Yona Exp. Forest of Ryukyu Univ. Yona, Kunigamison , 100-200 m: Miyamoto & Nakayama s.n., 5 March 1985,  Miyamoto & Nakayama 1407,  1408  , 1409  , 1412,  1413,  1414 ( TUAT);  Iwatsuki et al. s.n. ( KYO);  Miyako Island, Ohgami: Miyagi et al. s.n. ( KYO). 

TUAT

TUAT

BISH

BISH

MICH

MICH

TAI

TAI

KYO

KYO