234 ORGANOGRAPHY. BOOK I. 
when the end next it cohere with it : when they are 
adnate, and at the same time do not terminate abruptly 
at the stipes, but are carried down it more or less, they 
are decurrent ; if they do not adhere to the stipes, they 
are said to be free. 
8. Stroma^ is a fleshy body to which flocci are attached ; as 
in Isaria and Cephalotrichum. 
9. Flocci^ are woolly filaments found mixed with sporules in 
the inside of many Gastromyci. The same name is 
also applied to the external filaments of Byssaceae. 
10. Orbiculus, is a round flat hymenium contained within the 
peridium of some fungi ; as Nidularia. W. 
11. Nucleus, is the central part of a perithecium. 
12. Sporangium, is the external case of Lycoperdon and its 
allies. 
13. Sporangiola, are cases containing sporidia. 
14. Perithecium, is a term used to express the part which 
contains the reproductive organs of Sphaeria and its 
co-ordinates. 
15. Peridium, is also a kind of covering of sporidia; peridio^ 
lum is its diminutive. 
16. Ostiolum, is the orifice of the perithecium of Sphaeria. 
17. Splierula, is a globose peridium, with a central opening 
through which sporidia are emitted, mixed with a gela- 
tinous pulp. 
18. Capillitium, is a kind of purse or net, in which the sporules 
of some fungi are retained ; as in Trichia. W, 
19. Trichidium, or pecten, is a tender, simple, or sometimes 
branched hair, which supports the sporules of some 
fungi ; as Geastrum. W. 
20. Asci, are the tubes in which the sporidia are placed ; 
ascelli or thecm are the same thing. 
21. Sporidia, are the immediate covering of sporules; spo- 
ridiola, are sporules. 
22. Thallus, or thalamus, is the bed of fibres from which many 
fungi arise. 
23. Mycelia, are the rudiments of fungi, or the matter from 
which fungi are produced. 
