Tetracladium furcatum Descals, Trans. Brit. Mycol. Soc.

Kravetz, Sebastián, González, Beatriz, Marano, Agostina & Giorgi, Adonis, 2018, The genus Tetracladium in Pampean streams (Buenos Aires, Argentina), Phytotaxa 338 (3), pp. 276-284 : 279-280

publication ID	https://doi.org/ 10.11646/phytotaxa.338.3.5
persistent identifier	https://treatment.plazi.org/id/03FA0E21-9242-FF88-CBC9-F88DFC55F7E8
treatment provided by	Felipe
scientific name	Tetracladium furcatum Descals, Trans. Brit. Mycol. Soc.
status

Treatment

Tetracladium furcatum Descals, Trans. Brit. Mycol. Soc. 80: 70 (1983). (Fig. 4a–c)

Conidia with two digitiform, and two or three acicular elements. Central axis 18–35 × 2.5–3.5 μm, without basal extension and a distal digitiform element. The digitiform elements form a v-shaped fork. Primary branches at one or two levels; secondary branch acicular, inserted on the digitiform branch of first level.

Specimens examined:— Buenos Aires, General Las Heras, Plommer, Durazno stream, 34° 47´38.416´´S, 59° 02´23.764´´W, 0–50 m, 28 August 2017, Kravetz, S. 79 (slide BAFC 52787 About BAFC ) GoogleMaps ; ibid., Kravetz , S. (slide UNLu 80) GoogleMaps ; Marcos Paz, Villars, Durazno Chico stream, 34° 48´23.04´´ S, 58° 58´56.179´´ W, 0-50 m, 28 August 2017, Kravetz, S. 77 (slide BAFC 52788 About BAFC ) GoogleMaps ; Navarro , S / N2 stream, 34° 58´57.645´´ S, 59° 13´27.088´´ W, 0–50 m, 28 August 2017, Kravetz, S. (slide UNLu 64) GoogleMaps .

Notes:— This is the first report of the species in South America. In general, all the characteristics of our material are in agreement with Roldán (1989), except for the basal extension wich was not present in our material.

Figure 2. 1a–1i. Conidia of T. setigerum (Giles stream, Vagues stream, De la Cruz stream, SN1 stream, Haras stream, Durazno Chico stream, Durazno stream, Morales stream and SN2 stream, respectly). 2a–2h. Conidia of T. marchalianum (Vagues stream, Los Sauces stream, De la Cruz stream, SN1 stream, Haras stream, Balta stream, Frías stream and Durazno stream, respectly). 3a–3i. Conidia of T. breve (La Guardia stream, Giles stream, Vagues stream, Los Sauces stream, De la Cruz stream, Haras stream, Balta stream, Durazno stream, Morales stream and Salgado stream, respectly). 4a–4c. Conidia of T. furcatum (Durazno Chico stream, Durazno stream and SN2 stream, respectly). 5a–5b. Conidia of Tetracladium sp. (Giles stream). Scale bar = 50 μm.