Comatricha rubens Lister, Monogr.

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 rubens Lister, Monogr. mycetozoa, ed. 1, 123. 1894

≡ Collaria rubens (Lister) Nann. -Bremek, Nederlandse Myxomyceten (Zutphen) 236. 1975

— Lectotypus (designated here): UNITED KINGDOM. England, Dorset, Lyme Regis , 50.725ºN 2.940ºW, May 1891, A. Lister (two slides, L:B.M.93!, one a dry mount engraved 378, BM001089150 , the other engraved 379, BM001089149 ) . Syntypus: U.S.A. Philadelphia, G.A. Rex (one slide, L:B.M.93!, engraved 380, BM001095277 ) . Syntypus: UNITED KINGDOM. England, Dorset, Lyme Regis, Orchard Highcliff , 50.725ºN 2.940ºW, 4 May 1891 ( BM 510 B!, BM001089796 ) . Syntypus: UNITED KINGDOM. England, Dorset, Lyme Regis, Orchard Highcliff , 50.725ºN 2.940ºW, leaf heap, 5 May 1891 ( BM 510 D!, BM001089797 ) . Syntypus: [ BM]1400! (no more data on the box). From the sheet label: UNITED KINGDOM. England, Dorset, Lyme Regis, Highcliff , 50.725ºN 2.940ºW, leaf heap, 5 May 1891, Lister ( BM 1400 !, BM001089795 ) .

L:B.M.93 one dry mount engraved 378/ Comatricha / rubens Lister / Lyme Regis, Dorset / V.1891 / leg. Lister/ BM001089150 + one slide engraved 379, BM001089149. L:B.M.93 one slide engraved 380/ Comatricha / rubens Lister / Philadelphia/ leg. G.A. Rex / BM001095277. [BM] 510 B / Comatricha rubens List. / Leaf heap, Orchard Highcliff/ May 4. 91/ BM001089796. [BM] 510 D / Comatricha rubens List. / Leaf heap, Orchard Highcliff/ May 5. 91/ BM001089797. [BM] 1400 [no more data on the box. In the sheet label: “[BM]1400/ Comatricha rubens Lister / leaf heap/ Highcliff, Lyme Regis/ leg. Lister May 5.1891/ Type specimen/ Lister coll. Mycetozoa. Recd. 1894”]/ BM001089795.

NOTES: Lister (1894: 123) mentions two collections, one from Lyme Regis, Dorset and the other from Philadelphia,

with the same number (L:B.M.93). In BM we found 3 slides with this number, two from Lyme Regis, Dorset, May

1891. One of these is a slide mount with a few fragments of substrate bearing sporocarps. The third is from Philadelphia,

collected by G.A. Rex . We chose the material from Lyme Regis as the lectotype as it is in very good condition and is mentioned by Lister. In BM there are also various boxes with more material from Highcliff Lyme Regis, and from the same year and month as the lectotype, but different days in May. One or more may be duplicates of the lectotype.

These are BM 1400 ( BM001089795 ) labelled “leaf heap, Highcliff, Lyme Regis, leg. Lister, May 5. 1891 ”, BM 510 B

(BM001089796) with “Leaf heap, Orchard Highcliff, May 4.91” (there is another sample in this box from Chingford

J. Ross 1.35, XLVI: 112), and BM 510 D (BM001089797) with “Leaf heap, Orchard Highcliff, May 5.91”. There are no notes. Nannenga-Bremekamp (1975), transferred this species to the genus Collaria , but some authors do not accept this genus.