different between scoriaceous vs coriaceous

English

scoria +? -aceous

scoriaceous (comparative more scoriaceous, superlative most scoriaceous)

Latin corium (“skin, leather”) +? -aceous

coriaceous (comparative more coriaceous, superlative most coriaceous)

(botany) Resembling leather; leathery.
- 1997, JinShuang Ma, "New Species of Euonymus (Celastraceae) from East and South Asia", Harvard Papers in Botany 10: 93-111, Abstract.
  This species is similar to E. vagans Wallich in the texture of the leaves, which are more thickly coriaceous and have fewer crenulations on margin; the large globose capsules are white spotted.

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