epicarp

At intervals along the surface of the epicarp are stomata, or breathing pores, surrounded by guard cells.
All About Coffee|William H. Ukers
The cells of the epicarp are broad and polygonal, sometimes regularly four-sided, about 15–35 µ broad.
All About Coffee|William H. Ukers
Mooden Sheriff ascribes its emetic properties to the pulp alone, the epicarp and seeds being inactive according to his authority.
The Medicinal Plants of the Philippines|T. H. Pardo de Tavera
Fruit with a fibrous-fleshy indehiscent epicarp, and a mostly rough irregularly furrowed endocarp or nut-shell.
The Manual of the Botany of the Northern United States|Asa Gray

Fruit a little seed-like nutlet, enclosed in a loose and separable membranous epicarp.
The Manual of the Botany of the Northern United States|Asa Gray

British Dictionary definitions for epicarp

epicarp

exocarp

/ (ˈɛpɪˌkɑːp) /

noun

the outermost layer of the pericarp of fruits: forms the skin of a peach or grape

Word Origin for epicarp

C19: from French épicarpe, from epi- + Greek karpos fruit

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012