168 ENDOSPOREAE [LAMPRODERMA 



from var. Carestiae by the spore markings ; it appears to be abundant 

 in the Jura Mountains and on theSwiss Alps in spring-time.* The type 

 of Tilmadoche Berkeleyi Mass., from the United States (K. 1563a), 

 appears to be an immature specimen of L. violaceum. 



Hab. On dead leaves, twigs and herbaceous stems. — Twycross, 

 Leicester (B.M. 203b) ; Brockley, Somerset (B.M. 202) ; Devon 

 (B.M. 1412); Luton Hoo, Beds (B.M. 1411); Cornwall (B.M. 2675); 

 Salop (B.M. 2674) ; Alnwick, Northumberland (B.M. 2676) ; North 

 Wales (B.M. 2677); Scotland (B.M. 2678); France (Paris Herb.); 

 Germany (Strassb. Herb.) ; Switzerland (Strassb. Herb.) ; Norway 

 (B.M. slide) ; Portugal (B.M. 2679) ; Maine (B.M. 1610) ; Massa- 

 chusetts (B.M. 1413); Ohio (B.M. 2680); Iowa (B.M. 2681); West 

 Virginia (B.M. 1919) : var. Sauteri— Tyrol (B.M. slide) ; Germanv 

 (B.M. 607b); Switzerland (B.M. 2682)*; Philadelphia (B.M. slide): 

 var. Carestiae— Clova, Scotland (B.M. 2683) ; Sweden (B.M. 2684) ; 

 Germany (B.M. 607a) ; Switzerland (B.M. 608) ; North Italy (B.M. 

 606) ; Philadelphia (B.M. 1806) : var. dictyosporum — Switzerland 

 (B.M. 2686). 



6. L. Lycopodii Raunkiaer in Bot. Tidssk., xvii. 109 

 (1888). Plasmodium ? Sporangia scattered or clustered, 

 globose, 0-8 mm. diam., stalked, sessile, or forming plas- 

 modiocarps, purple-brown, shining with iridescent colours ; 

 sporangium-wall membranous, colourless above, purplish- 

 brown below. Stalk black, 0-2 to 05 mm. high. 

 Columella cylindrical, reaching to half or two-thirds the height 

 of the sporangium, absent in the plasmodiocarp form. Capilli- 

 tium a network of pale purplish-brown flexuose threads, 

 which are stouter below, slender and colourless at the tips. 

 Spores brownish-purple, 12 to 18 /a diam., regularly reticulated 

 with narrow raised bands that form a net with from 14 to 

 24 meshes on the hemisphere, and show as a border 1 to 

 1-5 fx wide. — Lister in Journ. Bot., xlvi. 218. Stemonitis 

 cribrarioides Fr. Syst. Myc, hi. 163 (1829) ? Cribraria 

 Lycopodii F. Nees in litt. ex Fr. I.e. ? 



PI. 133. — a. plasmodiocarp (Switzerland) ; b. c. capillitium ; d . e. spores. 



This species is closely allied to L. violaceum var. dictyosporum from 

 which it differs in the perfectly reticulated and bordered spores, and 

 paler capillitium. Besides the type from Zealand two other 

 gatherings have been obtained — a plasmodiocarp form on Lycopodium 

 a'pinum found by Dr. A. Volkart on the Furstenalp, Graubunden, 

 1,700 m. alt., and a specimen with stalked sporangia, on a twig, 

 gathered by G. von Beck on the Alps near Vaduz, Lichtenstein, 



* M. Ch. Meylan has recently published a new species, Lamproderma atrosporum (Bull. 

 Soc.Vaud.. xlvi. 51) which is distinguished by the following characters. The sporangium- 

 wall is either completely evanescent or adheres in fragments to the dark tips of the 

 capillitium ; *he latter resembles that of L. violaceum var. Carestiae ; the spore-; art- 

 black in mass, and either spinulose or marked with a close irregular network of ridges. 

 Underthis species he would include L. violaceum var. dictyosporum, and some 

 gatherings classed hitherto as L. violaceum var. Carestiae from which he considers 

 L. atrosporum always differs in having blacker spores and more fragmentary sporangium- 

 walls. In correspondence he writes that while L. violaceum together with the vars. 

 Sauteri and Carestiae are of frequent occurrence on the Jura Mountains and blend 

 freely into one another, he has never found forms connecting these with L. atrosporum 

 which occurs in similar situations and is also abundant. 



