Comatricha persoonii var. fusca Lister, J. Bot.

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 persoonii var. fusca Lister, J. Bot. 35: 215. 1897

≡ Comatricha pulchella var. fusca (Lister) G. Lister , in Lister, Monogr. mycetozoa, ed. 2, 156. 1911

= Comatricha pulchella (C. Bab.) Rostaf., Sluzowce monogr. suppl. 27. 1876

— Lectotypus (designated here): UNITED KINGDOM. England, Essex, Wanstead Park , 51.5676ºN 0.0403ºE, Sep 1896, A. Lister ( BM 1715 !, BM001089759 ) . Syntypus: UNITED KINGDOM. England, Essex, Wanstead Park , 51.5676ºN 0.0403ºE, 8 Oct 1896 (one slide, BM s.n.!, 1, BM001247115 ) . Syntypus: UNITED KINGDOM. England, Essex, Wanstead Park , 51.5676ºN 0.0403ºE, 15 Nov 1896 (one slide, BM s.n.!, 2, BM001247116 ) .

[BM] 1715 [no more data on the box, in the sheet label: “[BM]1715/ Comatricha persoonii Rost / var. fusca List. / Wanstead Park Essex / leg. Lister 9.96/ J. of Bot June 97 p. 215/ Type ”]/ BM001089759. BM s.n. one slide 1/ Comatricha / persoonii R/ var. fusca / Wanstead Pk / Oct 8. 96/ dark capm / N.XIIp.18/ BM001247115). BM s.n. one slide 2/ Comatricha / persoonii Rost. / v. fusca / dark spores/ On leaves/ Wanste Pk, 15.11.96/ BM001247116.

NOTES: Lister (1897: 215) wrote “In Wanstead Park, however, a large growth came up on dead leaves under brambles”

and later “Specimens in the British Museum from Broome’s collection had caused me perplexity until I recognized them as being the same species as the Wanstead form of C. persoonii , which retained its distinctive characters in continuous growths though Sept., Oct., and on to Nov. 5th.”. In BM there is a box (BM 1715), marked “ Type specimen”, from

“Wanstead Park, Essex, leg. Lister, 9.96”, which we designate as the lectotype as it also has the publication on the label

“J. of Bot. June 97 p. 215. The Broome material mentioned in the publication was not located in BM. In notebook XII:

18–19, 74 several Wanstead Park collections are mentioned (1707 to 1711) but not 1715.