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protoxylem![]() ![]() ![]() ![]() Значение термина protoxylem в knolikprotoxylem - protoxylem protoxylem - First xylem elements to be differentiated from pro-cambium; extensible. Described as endarch when internal to the later-formed metaxylem, e.g. in stems of angiosperms; exarch when external to metaxylem, e.g. in roots; and mesarch when surrounded by metaxylem, e.g. in stems of ferns. Рядом со словом protoxylem в knolik
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