888 Tuberoideae, Tuberacete, Tuber. 



anastomosantibus et cito evauidis, aliis filiformibus, numerossimis, 

 percursa; ascis ellipsoideis, 1-2- raro 4-sporis; sporidiis ellipsoideis ■ 

 alveolato-reticulatis, reticulis maculis p(ftius minutis, 38-45^29- 

 32, fusco-brunneis. 



Hab. in Italia bor. — Fungus 1,3-2,7 cm. diam.; odor alliaceus; 

 sapor oleoso-rancidus, vix esculentus. 



9. Tuber microsporum Vittad. Monogr. Tuber. p. 46, t. II, f. 6, Tul. j 

 Hypog. p. 149. — Subrotundum, leve, molliusculum, sordide album 

 V. dilute fuligineum; gleba moili, albida, demum luteo-rufescente, 

 venis albidis, numerosis, flliformibus, subintegris, subparallelis, e pe- 

 ridii punctis variis divergentibus, percursa; sporidiis ovoideis, mi- 

 nutis, leviusculis (?) v. potius alveolato-reticulatis. 



Hab. in silvis et campis Ital. bor. — Fungus magnitudine nu- 

 cis avellanse v. raro juglandinae. 



10. Tuber affine Corda Icon. Fung. VI, p. 80, f. 140. — Irreguiari- 

 ter depresso-lentiforme, e basi (?) quidpiam excavata sulcato-pU- 

 catum, leve, brunneum; gleba carriosa, cinereo-rubra, venis paucis 

 sordide luteo-cinereis, hinc inde ex periplieria fungi oriundis, cras- 

 siusculis, parce ramosis anastomosantibusve percursa; ascis copio- 

 sis, ovoideis, 1-2-sporis; sporidiis late ovoideis v. ellipsoideis, mi- 

 nute faveolato-plicatis, 44,5 y.. saturate fuscis. 



Hab. iu Galiia austr. (Lespiault). — Fungus 20 mm. lat. 



11. Tuber nuciforme Corda Icon. Fung. VI, p. 79, f. 143. — Sub- 

 regulare, depresso-globosum, rubro-fuscum, leve; gleba carnosa, 

 sordide cinereo-lutea, cinereo-fusco-maculata, venis sordide luteis, 

 parum manifestis variegata; ascis ovoideis, sessilibus v. brevissime 

 stipitatis, raris 2-3- sa^pius 1-sporis; sporidiis ellipsoideis, minute 

 foveolato-plicatis, dilute fusco-badiis, 44-45 a. diam. 



Hab. in Gallia? — Fungus 1 cm. diam. — Var. occidentale 

 Corda lcon. Fung. VI, p. 80, f. 144 (ut species): ascis numerosio- 

 ribus, sicpius 3-4-sporis; sporidiis majoribus, 53,5-59,5 a. diam., 

 saturatius castaneo-brunneis, areolis paullo majoribus. 



12. Tuber austraie Speg. Truf. Arg. p. 3. — Globosum v. globoso- 

 trigonum, superne integrura, inferne saepius trilobatum, levissimutD, 

 sordide album; cortice tenui, a gleba inseparabili; gleba compactiu- 

 scula, alba, dein grisea, venis parcis crassiusculis, albis, ramoso- 

 auastomosantibus percursa; ascis deuse dispersis, [globosis vel glo- 

 boso-eilipsoideis, 70-90:^60-80, primo 2-3- dein saspius 1-2-sporis; 

 .sporidiis globoso-ellipsoideis, late reticulato-alveolatis, 45-50:; 35- 

 38, pallide fuligineo-olivaceis. 



