j[44 ^- Ferdinandsen. 



thiformis. Also in regard to gleba and microscopic characters there 

 is full agreement with this species. 



Calvatia arctica Ferdinandsen et Winge sp. п. 



Peridio fere habitum Sclerodermatis aurantii aemulante, subreni- 

 formi-globoso, inferne stipitiformi-protracto indeque plicato, lat. ad 

 6 cm., alt. circ. 3 cm., + radicato. Exoperidio tenui, superne verrucis 

 eximie pyramidatis, lineolis horizontalibus parallelis ornatis, obsesso, 

 nonnumquam magis irregulariter areolato-caelato, inferne, secundum 

 limitem satis distinctum, granuloso — primo albo, ad maturitatem 

 fungi ochraceo. Endoperidio crasso, irregulariter déhiscente, fragili. 

 Gleba peridium fere totum explente, initio alba, matura griseobrun- 

 neola, levissime olivaceo-tincta, basi sterili pallida, parvo-cellulari, 

 partem infimam stipitiformem peridii tanlum occupante, instructa. 

 Basidiis obovato-clavatis, 14— 16/i x 7—8//, sterigmatibus tenuibus, 

 usque 18 fj. long., suffultis. Sporis globosis, 45 fj. — 55// diam, minute 

 papillatis, uniguttulatis, tenuiter tunicatis, flavidulis, ad maturitatem 

 verrucis hyalinis, perexiguis, deciduis exasperatis. — Floccis diametro 

 fere sporarum (raro ad 14-2fj. lat.), iisdem subconcoloribus, nonnum- 

 quam dichotome ramosis. 



Hab. ad terram in tractu litoreo Groenlandiae orientalis, Lat, 

 bor. с. 77°. 



No. 241, in a bog, 19-7—07; No. 1803, Lille Snenæs. 9-7—08, common in 

 heath-bogs, damp Carex- and Eriophoriim-poo\s. 



As the above diagnosis shows (see also Plate IX), this fungus 

 has a very characteristic external appearance, not unlike certain 

 forms of Scleroderma aurantiiim (Vaill.) Pers.^ The specimens collected 

 were unripe, but on going through the collections of the Botanical Mu- 

 seum of Copenhagen in order if possible to find material for comparison, 

 I was successful in obtaining a ripe specimen of the fungus, collected 

 on the Liverpool Coast, Hurry hilet (C. Kruuse). The latter is 

 noted in RosTRUP's Fungi Groenlandiae orientalis etc., Medd. om 

 Grønland XXX, p. 115, under the name ot Lycoperdon favosum (Rostk.) 

 Bonord. . This last species seems from the description hardly distinct 

 from Calvatia caelaia (Bull.) Morg., and in his work "Die Gastero- 

 myceten Ungarns" p. 163, Hollös also gives the two species as syno- 

 nyms. — It is not possible now, however, to bring the above-de- 

 scribed species in under the true Caluatia caelata; the gleba-mass. 



1 In "Tillæg til Grønlands Svampe", Medd. om Grønland III p. 601, Rostrup states, 

 that Scleroderma vulgare Fr. is "common in heaths", citing a note of N. Hartz, 

 written on a label to a specimen from Vajgattet. The specimen in question, 

 however, is no Scleroderma, but belongs to the Lycoperdaceae and is most 

 likely nothing but a young Calvatia arctica. After this Scleroderma vulgare 

 Fr. {= S. aurantium (Vaill.) Pers.) is not recorded from the East coast. 



