488 133.Rhizomor. 5. IDIOTHALAMEZ. a cell. aph. 
Lichenoides non tubulosum ramosissimum, fraticuli specie, cinereo- 
fuscum, Raii Syn. 65, 10. 
Lichen fragilis, Lin. 8. P. 1621; Engl. Bot. 114. 
Lichen melanocarpos, Swartz ind. Occid. 147. 
Sphzrophoron compressum, Achar. Meth. 1353; Lich. 586. 
On rocks and heaths in mountainous places. 
II. 123. RHIZOMORPHA. Root-moss. 
Thallus cartilaginous, membranaceous, cylindrical, 
branched repeatedly, creeping, prostrate, inside towlike 
fibrous; apothecia giobular, sessile! frequently conglome- 
rated, formed of the cortical part of the thallus, opening 
irregularly, filled with powder. 
1. Rhizomorpha subcorticalis. . Bark root-moss. 
Thatllus compressed, blackish-brown, shining; branches 
scattered, anastomosing in a network; apothecia conglo- 
merate. 
Fungoides q. Fungus niger compressus, varie divaricatus et implexus, 
inter lignum et corticem, Raii Syn. 15,9. 
Lichen aideelus, Humbcldt #l. Frib. 33, 
Clavaria phosphorea, Sowerby Fungi, 100. 
Rhizomorpha fragilis, Roth Cat. Bot. 1, 252. 
Rhizomorpha subcorticalis, Persoun Syn. Fung. T04. 
On the trunks of dead trees, especially firs; also in 
cellars. 
Thallus \uminous in the dark, at the ends of the branches. 
8. patens. Thallus dilated, broad, compressed. 
Rhizomorpha patens, Sowerby Engl. Fungi, 392, 1 and 2. 
2. Rhizomorpha spinosa. Thorny root-moess. 
Thallus cylindrical, slightly compressed, spineus, dull- 
brown; branches scattered, frequently anastomosing. 
Clavaria hypoxylon, Withering Bot. Arr. A, 404. 
Rhizomorpha spinosa, Achar, Lich. 588 ; Sowerby Fungi, 299. 
In lead-mines. 
3. Rhizomorpha sublerranea. _ Underground root-moss. 
Thallus cylindrical, bald, black, very much branched ; 
branches and twigs crowded, pointed, free. 
Lichen radiciformis, Lin. Syst. Nat. ed. 2, 964. 
Usnea radiciformis, Scopoli Diss. 1, 95. 
Rhizomorpha subterranea, dchar. Lich. 588. 
On half-rotten wood and stones in mines. 
4. Rhizomorpha dichotoma. Forked root-moss. 
Thallus cylindrical, greenish-brown; branches forked, 
spreading, long, cylindrical, naked, free. - 
