Pseudotaxiphyllum Z. Iwats.

Thouvenot, Louis & Müller, Frank, 2021, Contribution to the bryophyte flora of New Caledonia IV. Species new to the country, new localities together with taxonomic notes, Cryptogamie, Bryologie 20 (13), pp. 181-196 : 190

Genus Pseudotaxiphyllum Z. Iwats.

Pseudotaxiphyllum pohliaecarpum (Sull. & Lesq.) Z.Iwats.

SPECIMENS EXAMINED. — Isopterygium textorii , New Caledonia. South Province, Dogny, 1055 m, VII.1909, L. Le Rat s.n. PC[(PC0096550)]; North Province, Poindimié, Amoa Valley, Tipwadabwé, 20°59’23”S, 165°13’51”E, on wet soil in volcano-sedimentary massif, in mesophilous forest, 252 m, 13.X.019, Thouvenot NC2724; Viet Nam. Tam-Dao, 950 m, 7.VI.1925, V. Demange s.n. (PC[PC0763231)]; Rhynchostegium textori Sande Lac. Japan. “in Hiogo ad rupes montis Kimbosan”, Textor Siebold s.n. (original specimen in the herbarium J. Cardot) (iso-, PC[PC0693391)].

COMMENTS

When Müller &Tan(2013) reported Pseudotaxyphyllum pohliaecarpum in New Caledonia, they were surprised that this species was not yet reported from the area. Indeed, the presence of this species in New Caledonia, as Isopterygium textorii (Sande Lac.) Mitt. and Isopterygium arquifolium (Bosch & Sande Lac.) A.Jaeger , were troublesome since Pursell & Reese (1982) reported it in New Caledonia according to Brotherus (1911), but there was no mention of the species there. Subsequently, Thouvenot & Bardat (2010) mention only I. textorii var. latifolium Cardot & Thér. , after Thériot (1911), but erroneously too since the record of this plant was from Japan. Recently, we recovered in PC a specimen collected in 1909 in South Province by Mrs Le Rat, identified by E.G. Paris as I. textorii and annotated by himself as new to the island. The ancient presence of P. pohliaecarpum in New Caledonia is consequently documented.