The types of lichenes in the university area of Sumatra Utara
Desy Ardina (a*), Ashar Hasairin (b), Idramsa (b)

a) Postgraduate Student of Biology Education Program, State University of Medan
Jalan Wiliam Iskandar/Pasar V, Medan 2022, Indonesia
*desyardina94[at]gmail.com
b) Lecture of Biology Education Program, State University of Medan
Jalan Wiliam Iskandar/Pasar V, Medan 2022, Indonesia

Abstract

Lichenes is a symbiosis between fungi (mycobionts) from Ascomycetes and Basidiomycetes, and algae (phycobionts) from Cyanobacteria or Chlorophyceae so that morphology and physiology are one unit. Lichenes corticolous live as epiphytes in the substrate of tree bark branches. Lichenes grow in the university area of North Sumatra where many shade trees are found as the substrate. This research used survey method and morphometric method was used to identify the morphology of lichens. Sampling was found in 4 areas of North Sumatran Higher Education: 1. Universitas Negeri Medan, 2. Universitas Sumatra Utara, 3. Universitas Medan Area, 4. Institut Teknologi Sawit Indonesia. This study found 22 species of lichenes from 10 families: Cryptothecia striata, Cryptothecia scripta, Arthonia radiata, Cryptothecia granulatus, Arthonia patellulata (Family Athoniaceae), Graphis scripta (Family Graphidaceae), Parmelia caperata, Parmeliopsis ambigua, Flavoparmelia baltimorensis, Hypogymnia physodes (Family Parmeliaceae), Dirinaria applanata (Family Caliciaceae), Lepraria incana, Lepraria lobificans (Family Streocaulaceae), Ochreolechia subviridis (Family Pertusariaceae), Lecanora symmicta, Lecanora strobilina, Lecidella elachoroma (Family Lecanoraceae), Ochroleachia tartarea (Family Orchrolechiacea), Viridothelium virens (Family Trypeteliaceae), Rinodina roboris (Family Physciaceae). The types of lichens found included crustose and foliose thallu types.

Keywords: Lichenes, University, Sumatra Utara

Topic: Mathematics,Science and Nursing Education