SriLankaLichens_Book_eng - page 13

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24 Phyllocladia distinctly
flattened
Stereocaulon
foliolosum Nyl.
25
Thallus simple or
weakly branched, not
bushy
Siphula
decumbens Nyl.
25 Thallus much
branched, bush-like 26
26 Medulla solid
Bunodophoron
formosanum
(Zahlbr.) Wedin
26 Medulla hollow
Bunodophoron
diplotypum (Vain.)
Wedin
27 Thallus inflated,
hollow inside 28
27 Thallus not inflated
and not hollow inside 29
28
Thallus with soredia.
Upper surface with
small perforations
Menegazzia
terebrata (Hoffm.)
A.Massal.