86 ANALES DE LA SOCIEDAD CIENTÍFICA ARGENTINA 



rugoso, parce fibrosulo-myceliifero ; cortex exterior mox evane- 

 scens, albus, tenuis ; cortex interior tenui papyraceo-membra- 

 naceus, tenacellus, laxe minuteque granuloso-verruculosus e 

 frustulis corticis exterioris adhaerentibus, albus v. pallescens 

 (in sicco), tenacellus, persistens, per aetatem vértice irregulari- 

 ter dehiscens ; basis sterilis stipitem tantum occupans, floccoso- 

 stipata, pallide fusco-virescens v. subolivascens cum gleba con- 

 tinua ; gleba floccoso-pulverulenta, virescenti-olivacea ; sporae 

 globosae, parvulae (2-2,5 diam.), sub lente chlorinae^ laxe ver- 

 ruculoso-asperae, cauda hyalina, eorum diametrum aequante v. 

 vii superante, recta v. parce flexuosa, gracili donatae. 



Hab. Ad terram sabulosam in sylvis prope Guarapí, Aug. 1882 

 (sub num. 3921). 



Obs. Species Lycoperdone pyriforme Schaeffer nec non L. gem- 

 mato Batsch. simillima, sed glebae colore, sporarumque magni- 

 tudine satis distincta. 



96. Lycoperdon (Pseudobovista) scleroderma Speg. (n. sp.) 



Diag. Peridia alba, turbinato-globosa (4,5-5 cent. alt. — 4 cent, 

 diam.), superno late rotuudato-hemisphaerica per aetatem ir- 

 regulariter dehiscentia, inferné subcoarctata ac breviter obco- 

 nico-producta, parceque plicato-rugosa, modice albo-fibroso 

 radicata; cortex exterior interiori arete adnatus (specimina 

 subimmatura !) superno grosse obscureque polygone diffractus, 

 albus, glaber, laevis ; cortex interior cum externo confluens, 

 crassus, fragilis (in sicco) concolor ; basis sterilis peridii ter- 

 tium inferum occupans, floccoso-stipata, compactiuscula, vire- 

 scenti-alba, gleba adnata ; gleba floccoso-pulveracea, pallide 

 sordideque violascenti-purpurea ; sporae globosae (3-4 diam.) 

 laevps, sub lente violascentes, grosse 1-guttulatae, cauda facil- 

 lime decidua, minuta, dimidium eornm diametrum vix aequante, 

 subhyalina ornatae. 

 Hab, In campis apricis inter gramina ad solum subargillaceum 

 prope Paraguari, Mart. 1883 (sub num. 3922). 



