What is "exotheca"

Exotheca \Ex`o*the"ca\, n. [Nl., fr. Gr. 'e`xw outside + ? a case, box.] (Zo["o]l.) The tissue which fills the interspaces between the cost[ae] of many madreporarian corals, usually consisting of small transverse or oblique septa. [1913 Webster] ||

n. (context zoology English) The tissue that fills the interspaces between the costae of many madreporarian corals, usually consisting of small transverse or oblique septa.

Exotheca is a genus of African and Southeast Asian plants in the grass family.

The only known species is Exotheca abyssinica, which has a disjunct (discontinuous) distribution. It is native to Vietnam and also to eastern and southeastern Africa (from Eritrea to Mozambique).