Comatricha cornea G. Lister & Cran, 1917

Lado, Carlos & Basanta, Diana Wrigley De, 2018, Typification of the myxomycete taxa described by the Listers and preserved at the Natural History Museum, London (BM), Phytotaxa 341 (1), pp. 448-450 : 448-450

Comatricha cornea G. Lister & Cran , in G. Lister, J. Bot. 55: 121. 1917

≡ Macbrideola cornea (G. Lister & Cran) Alexop., Mycologia 59(1): 112. 1967

— Lectotypus (designated here): UNITED KINGDOM. Scotland, Aberdeen, Skene , 57º09’N 2º19’W, on moss, 12 Jun 1913, W. Cran (one slide, BM s.n.!, 1, BM001089144 ) . Syntypus: UNITED KINGDOM. Scotland, Aberdeenshire, Westhill Avenue , 57.15ºN

2.28ºW, 25 Mar 1914 (one slide, BM s.n.!, 2 BM001247103 ). Syntypus: UNITED KINGDOM. Scotland, Aberdeenshire, Westhill , 57.154ºN 2.284ºW, 12 May 1915 (one slide, BM s.n.!, 3, BM001247104 ) .

BM s.n. one slide 1/ Comatricha / cornea Lister &/ Cran/ on moss, Skene/ W. Cran, 12.6.13/ XXXIV.32/ BM001089144. BM s.n. one slide 2/ Comatricha / cornea/ G.L. & Cran/Westhill Avenue/ 25.3.14/ XXXIV.137, 32, BM001247103 [second label: 2/laxa/ (minute)/ W. Avenue/ 25.3.14]. BM s.n. one slide 3/ Comatricha / cornea G.L. &/ Cran/ XXXVI.137, BM001247104 [second label: 3/ Westhill Avenue/ XXXVI.137/ mtd. 12.5.15/ Spores 8–9 μ].

NOTES: In the descrition of this species G. Lister (1917: 121) stated “On bark and moss, Westhill and Kirkville, Skene near Aberdeen. Mr. Cran first observed this species in March 1913 in company with Hymenobolus parasiticus Zukal , on mossy bark kept under care indoors; since then it has appeared twice again on his cultures; he also found it in the open on plane bark at Kirkville in the summer of last year.” In BM we found three slides (BM s.n.). The slide BM s.n. 1 we designate here as the lectotypus, since it is one of the specimens studied by the author to describe this minute species. The other two slides are syntypes. In notebook XXXIV: 32 there is a drawing of this material that is reproduced in the publication .