PLATE TL 



COMMON BROWN MOULD. 



Fig. 1. Tin; Mdcoe Plant PRODUCED FROM A CoNiDiuM. Showing — 



Branclied liypha. 



Erect h3'plia (Gr. hijphe, a weaving) terminating in a minute enlargement — the s2)orangiuiu. 

 Fio. '2. Showing — 



End of erect hypha. 



Cohimella (L. a little column). 



Terminal cell, conidia-case, or sporangium (Gr. spora, a seed; angeion, a vessel). 



Wall of sporangium with crystals of oxalate of lime. 



Spores or endo-conidia (Gr. endon, within ; lionis, dust). 

 Fig. 3. Showing — 



Burst conidia-case or sporangium. 



Collar, the remains of the wall of sporangium. 



Endo-conidia or spores. 

 Fig. -1. Showing — 



The conidium germinating and producing a branched hypha, which ultimately develops into the 

 form shown in fig. 1. 

 Fig. 5. Showing — 



Portion of branched hypha with protoplasm removed. 



No septa. 

 Fig. C. Showing — 



Ptirtion of old submerged hypha, breaking up into distinct joints — the Chlamydospores (Gr. 

 clilamys, a coat ; spora, a seed) or Mucor-torulaj, each containing a vacuole. 

 NoU. — Vacuolated protoplasm and septum. 

 Fig. 7. The Sexual Process — ■ 



a Sf h. Two distinct processes given off from the hyphae. 



c. Terminal cell separated off from each process. 



d. Union of the two terminal cells to form a zygospore (Gr. zugos, a yoke ; spora, a seed). Since 



the uniting elements closely resemble one another the process is called conjugation. 



DlAGEA^ OF THE PeO-EMBRTO OF MUCOR PRODUCED FROM A ZYGOSPORE. Showing — - 



Zygospore. 



Unbranched hypha. 



Erect hypha. 



Conidia-case or sporangium, containing conidia, each of which can produce tlie Mucor plant 



(fig- !)■ 



CLASSIFICATION OF MUCOR. 



Kingdom — Plantse. 



Suh-Kingdom — Thallophyta. 



Class — Zygosporca;, marked by its sexual process, viz. conjugation. 



Group — Fungi. 



Order — Zygomycetes. 



Genus — Mucor. 



Common Name — Brown Mould. 



