Miicoraoeai, Muoorcx', TlKuoiiidiuin. 211 



THAMNIOIUM liiuk Spec. Plaiil. I, p. 07 (Ktyin. a Ikaninon aihustinn). 

 — Ifyplia" sporaiigiterai sparsiu, erectre, sporangiuiii globosuin, uia- 

 giiuin, polysporiiin Coreiites, rainosn> (raro simplices). Rauii verticil- 

 lati, 2 vel pluries ilichotoini, in tota hypha priniaria inserti. Ra- 

 luuli pafuli, sporangiolo prsediti. Sporangiola globosa, paucas sporas 

 coiilinenlia, rarissime inonosperma. 



I. Thamnidium elegans Link Ubs. p. 45 t. II, f. 45, et Spec. Plant. I, ^ii 

 p. 07, Schroei. Krypi. Flor. Schles. Pilze p. 210, Melidiani siible}-- 

 raneuiii M^chw. De Fruct. gen. Uhiz. coinni. Mucor clegans Fr. 

 Syst. Myc. I, p. 183, Ascopliora clcgans Oonla Icon. III, fig. 43, 

 Mncor Macedo De Bary et Woron. Beitr. p. 16, Ascophora piil- 

 rhra Preuss Fuugi Hoyerswerda n. 133, Tliaran. Van Tieghe- 

 nii Berk. et Br. Anu. Nat. Hist. n. 1496. — Hyphis sporangi- 

 leris erectis, ramosis; hypha priinaria sporangio spha^roideo, po- 

 lysporo, columella magna i^ra^dito; ramis verticillatis vel solita- 

 riis, j)Iui'ies dichotomis, ramulis extiinis sporangiolum sphaTicuin, 

 4-10, raro 1-3 sporas continens, gerentibus; sporis ovalibus in utro- 

 (juo sporangio lequalibus, hyalinis, raro cerulescentihus, 8-10 -; (5-8. 

 Hah. in substantiis organicis putridis satis frequens in Gernia- 

 nia, Gallia, Italia, Belgio, Britannia. Iloyerswerda. — Varife fornire 

 liujus fungilli observantur. — I. Hypliis sporangiferis, simplicibus, 

 iiiagnum sporangium ferentibus (}[iicor pl. auct.). — II. Hyphis 

 sporangiferis ramosis, sporangio majori nullo, ramis sporangiolis 

 pra'(litis {Melidiuin). His characteribus inagiia fuit de hac specie 

 controversia, at patientissimis observationibus clariss. viri Van 

 Tieghem nunc eam autonomam putare licet. 



i. Thamnidlum verticillatum Van Tieghem Trois. Mem. sur les Muc. 7ir. 

 Ann. Sc. Nat. p. 37(i, pl. 13, lig. 84-88. — Minutum, liyphis spo- 

 rangiferis erectis S-10 inm. altis, sporangium splux^ricum, verruco- 

 suin, columella cylindro-conica donatum ferentibus, primum sursuin 

 ramosis, ramis 1-0 verticillatis, longis apice bis dichotomis ramulis 

 palulis sporangiola sph;orica. levia, columelld ininuta plano-con- 

 vexa pra?dita, gerentibus; sporis in utroque sporangio sphfericis, 

 hyalinis 5-() ;/. diain. 



Ifab. in timo equino in (.iallia. — ■ Specics perpulchra generum 

 Thanmidium et Thelactis copula. Verticillo apicali alia (2) inferno 

 adjunguntur, quorum raini tantum semel dichotomi. 



3. Thamnldium? paradoxum (B. etC.) Berl. et De Ton. Macor pai-a- ^i»". 

 do,vas P>erk. yi Curt. Noitli Amer. Fungi n. 377. — Hyphis spo- 

 raiigiferis brevilms, hyalinis; sporaiigiis diiforinibus, majoribus apice 



