phyteral

phyteral

[′fīd·ə·rəl]
(geology)
Morphologically recognizable forms of vegetal matter in coal.
References in periodicals archive ?
Such "phyteral analysis" of coals (Dawson 1859), directly linking microscopic coal constituents with parent plants, remains an under-utilized technique in coal petrography (Calder and Gibling, 1994), and reflects a general lack of paleobotanical knowledge.