"Perfiolate leaf, caused by the union of two opposite leaves."—Darby, 1855

Perfiolate Leaf

"Perfiolate leaf, caused by the union of two opposite leaves."—Darby, 1855

"Perfiolate leaf, caused by the union of the lobes of the leaves."—Darby, 1855

Perfiolate Leaf

"Perfiolate leaf, caused by the union of the lobes of the leaves."—Darby, 1855