Which plant has more species, Caralluma or Eucomis?
Caralluma Caralluma is a genus of flowering plants in the dogbane family, Apocynaceae, consisting of about 120 species.
Lecidea Lecidea is a genus of crustose lichens with a carbon black ring or outer margin (exciple) around the fruiting body disc (apothecium), usually (or always) found growing on (saxicolous) or in (endolithic) rock. Lichens that have such a black exciple are called lecideine, meaning "like "Lecidea", even if they are not in this genus. Members of the genus are commonly called disk lichens or tile lichens.