Christella hispidula (Decne.) Holttum

Matos, Fernando B., Bohn, Amabily & Labiak, Paulo H., 2020, The ferns and lycophytes of Reserva Natural Guaricica, Antonina, Paraná, Brazil, Check List 16 (1), pp. 183-206: 197

publication ID 10.15560/16.1.183

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scientific name

Christella hispidula (Decne.) Holttum


Christella hispidula (Decne.) Holttum  

Figure 5I

Examined material. BRAZIL • 2 specimens; Fazenda Rincão ; 25°18′53″S, 048°41′46″W; alt. 30 m; 1 Mar. 2005; F.B. Matos & U. Ferreira 466 leg.; MBM333033, UPCB10243 GoogleMaps   2 specimens; Estrada Sede-Gervásio ; 25°17′33″S, 048°42′15″W; alt. 30 m; 30 Apr. 2005; F.B. Matos & M.O. Silva 539 leg.; MBM333034, UPCB10249 GoogleMaps   2 specimens; same collection data as for preceding; F.B. Matos & M.O. Silva 543 leg.; MBM333035, UPCB10248 GoogleMaps   2 specimens; Faisqueira ; 25°22′14″S, 048°39′56″W; alt. 15 m; 7 Oct. 2005; F.B. Matos & P.B. Schwartsburd 858 leg.; MBM333036, UPCB10271 GoogleMaps   1 specimen; Trilha da Guaricica ; 25°19′13″S, 048°42′04″W; alt. 20 m; 8 Oct. 2005; F.B. Matos & P.B. Schwartsburd 867 leg.; UPCB10268 GoogleMaps   2 specimens; Trilha dos Pinheiros; 25°20′05″S, 048°40′54″W; alt. 30 m; 30 Apr. 2006; F.B. Matos & G. Weiss 1124 leg.; MBM333037, UPCB10269 GoogleMaps   1 specimen; Fazenda Santa Olímpia ; 25°16′45″S, 048°43′57″W; alt. 15 m; 27 Aug. 2017; F.B. Matos & J. Pontes 2604 leg.; UPCB44196 GoogleMaps   1 specimen; Trilha da Rede ; 25°17′49″S, 048°40′23″W; alt. 25 m; 25 Jun. 2019; F.B. Matos & V. Veiga 2673 leg.; UPCB44390 GoogleMaps   .

Identification. Characterized by short-creeping stems, 1-pinnate-pinnatifid leaves, the lowermost veins of adja- cent segments uniting below sinuses with an excurrent vein to the sinuses, and the indument abaxially of numerous, unbranched, acicular hairs. Sori round, with large and hairy indusia. It is often confused with Christella dentata (Forssk.) Brownsey & Jermy   , which differs by uniformly short hairs (0.1–0.2 mm long) on the costae abaxially (vs hairs of variable length, 0.3–0.8 mm long, in C. hispidula   ).

Distribution and habitat. Pantropical, introduced and naturalized in the Americas, from SE USA to Uruguay. Terrestrial in degraded areas.