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Abstrak :
ABSTRAK Penelitian mengenai lichen dilakukan di lingkungan kampus Universitas Indonesia, Depok pada Agustus 2015 -- Januari 2016. Tujuan dari penelitian ini adalah untuk menentukan struktur komunitas lichen di Universitas Indonesia, Depok. Tujuh plot 25 x 25 m dibuat di hutan kota dan sembilan garis transek masing-masing sepanjang 50 m dibuat di jalan utama kampus. Lima pohon dipilih pada setiap titik plot dan transek garis sebagai sampel. Sampel diambil dari pohon dengan DBH (Diameter at Breast Height) minimal 20 cm dengan jaring plastik 10 cm x 10 cm yang melekat di utara, selatan, timur, dan barat sisi batang pohon. Jaring plastik dibagi menjadi 100 kotak persegi, kemudian ditempel pada pohon dengan ketinggian yang berbeda (0 cm -- 100 cm dan 100 cm -- 200 cm) dari permukaan tanah. Hasilnya diperoleh tiga famili lichen yang ditemukan di hutan kota yaitu, Leprariaceae, Sarrameanaceae dan Physciaceae dan lima famili lichen di jalan utama kampus yaitu, Sarrameanaceae, Parmeliaceae, Leprariaceae, Graphidaceae dan Physciaceae. Kesamaan famili lichen antara hutan kota dan jalan utama kampus berdasarkan Indeks Sorenson sebesar 75%. Famili Leprariaceae adalah famili yang dominan di hutan kota, sementara Sarrameanaceae adalah famili yang dominan di jalan utama kampus. Keragaman lichen kedua lokasi dikategorikan sedang berdasarkan Indeks Shannon Wiener (H '1--3), namun tidak ada yang berbeda secara signifikan di antara kedua tempat tersebut. Famili Leprariaceae memiliki frekuensi kehadiran tertinggi pada pohon inang yaitu pohon daruak (Microcos tomentosa) sebesar 7,5%. Berdasarkan uji asosiasi (x2) antara tekstur kulit pohon dengan lichen menunjukkan asosiasi positif antara tekstur kulit pohon dengan lichen. Kehadiran famili Sarrameanaceae, Leprariaceae, Graphidaceae dan Physciaceae dipengaruhi oleh tekstur kulit pohon inang sedikit kasar.

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ABSTRACT Research on lichens was conducted at the Universitas Indonesia, Depok on August 2015 -- January 2016. The aim of this research is to determine community structur of lichen at the Universitas Indonesia, Depok. Seven plots of 25 x 25 m2 were made at the urban forest, while nine of 50 m line transect were made at the main road. Five trees of each plots and line transect were sampled. The samples were taken from trees with DBH (Diameter at Breast Height) minimum 20 cm then the grid 10 cm x 10 cm were attached at northern, southern, eastern, and western site of the trunk. The grid was divided into 100 square, then attached on trees in different height (0 cm - 100 cm and 100 cm - 200 cm) from the land surface. The result obtained three family of lichens were found in urban forest, they are Leprariaceae, Sarrameanaceae and Physciaceae. Five family were found at the main road, they were Sarrameanaceae, Parmeliaceae, Leprariaceae, Graphidaceae and Physciaceae. The similarity of lichens family between the urban forest and main road based on Sorenson similarity were high 75%. Family Leprariaceae was the dominant family at the urban forest, while Sarrameanaceae was dominant family at the main road. The diversity of lichen at both sites were categorized medium based on Shannon Wiener index (H? 1--3), however there was not significantly different between those place. Family Leprariaceae was the highest frequency of present on daruak (Microcos tomentosa) host tree, that was 7,5%. Based association test (x2) between the texture of tree bark with lichen, shows that positive association between the texture of tree bark with lichen,the presence of Sarrameanaceae, Leprariaceae, Graphidaceae and Physciaceae family is influenced by bark slightly rough.

Abstrak :
ABSTRAK
Penelitian mengenai lichen dilakukan di lingkungan kampus Universitas Indonesia, Depok pada Agustus 2015 -- Januari 2016. Tujuan dari penelitian ini adalah untuk menentukan struktur komunitas lichen di Universitas Indonesia, Depok. Tujuh plot 25 x 25 m dibuat di hutan kota dan sembilan garis transek masing-masing sepanjang 50 m dibuat di jalan utama kampus. Lima pohon dipilih pada setiap titik plot dan transek garis sebagai sampel. Sampel diambil dari pohon dengan DBH (Diameter at Breast Height) minimal 20 cm dengan jaring plastik 10 cm x 10 cm yang melekat di utara, selatan, timur, dan barat sisi batang pohon. Jaring plastik dibagi menjadi 100 kotak persegi, kemudian ditempel pada pohon dengan ketinggian yang berbeda (0 cm -- 100 cm dan 100 cm -- 200 cm) dari permukaan tanah. Hasilnya diperoleh tiga famili lichen yang ditemukan di hutan kota yaitu, Leprariaceae, Sarrameanaceae dan Physciaceae dan lima famili lichen di jalan utama kampus yaitu, Sarrameanaceae, Parmeliaceae, Leprariaceae, Graphidaceae dan Physciaceae. Kesamaan famili lichen antara hutan kota dan jalan utama kampus berdasarkan Indeks Sorenson sebesar 75%. Famili Leprariaceae adalah famili yang dominan di hutan kota, sementara Sarrameanaceae adalah famili yang dominan di jalan utama kampus. Keragaman lichen kedua lokasi dikategorikan sedang berdasarkan Indeks Shannon Wiener (H '1--3), namun tidak ada yang berbeda secara signifikan di antara kedua tempat tersebut. Famili Leprariaceae memiliki frekuensi kehadiran tertinggi pada pohon inang yaitu pohon daruak (Microcos tomentosa) sebesar 7,5%. Berdasarkan uji asosiasi (x2) antara tekstur kulit pohon dengan lichen menunjukkan asosiasi positif antara tekstur kulit pohon dengan lichen. Kehadiran famili Sarrameanaceae, Leprariaceae, Graphidaceae dan Physciaceae dipengaruhi oleh tekstur kulit pohon inang sedikit kasar.

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ABSTRACT
Research on lichens was conducted at the Universitas Indonesia, Depok on August 2015 -- January 2016. The aim of this research is to determine community structur of lichen at the Universitas Indonesia, Depok. Seven plots of 25 x 25 m2 were made at the urban forest, while nine of 50 m line transect were made at the main road. Five trees of each plots and line transect were sampled. The samples were taken from trees with DBH (Diameter at Breast Height) minimum 20 cm then the grid 10 cm x 10 cm were attached at northern, southern, eastern, and western site of the trunk. The grid was divided into 100 square, then attached on trees in different height (0 cm - 100 cm and 100 cm - 200 cm) from the land surface. The result obtained three family of lichens were found in urban forest, they are Leprariaceae, Sarrameanaceae and Physciaceae. Five family were found at the main road, they were Sarrameanaceae, Parmeliaceae, Leprariaceae, Graphidaceae and Physciaceae. The similarity of lichens family between the urban forest and main road based on Sorenson similarity were high 75%. Family Leprariaceae was the dominant family at the urban forest, while Sarrameanaceae was dominant family at the main road. The diversity of lichen at both sites were categorized medium based on Shannon Wiener index (H? 1--3), however there was not significantly different between those place. Family Leprariaceae was the highest frequency of present on daruak (Microcos tomentosa) host tree, that was 7,5%. Based association test (x2) between the texture of tree bark with lichen, shows that positive association between the texture of tree bark with lichen,the presence of Sarrameanaceae, Leprariaceae, Graphidaceae and Physciaceae family is influenced by bark slightly rough

Abstrak :
ABSTRAK
Penelitian mengenai komunitas epifit telah dilakukan pada cuplikan seluas satu ha di Hutan Kota Muhammad Sabki (HKMS), Kota Jambi. Data diambil pada bulan Januari sampai Februari 2012. Jumlah seluruh pohon 489 individu, 25 individu yang terdiri atas 10 spesies menjadi inang epifit. Pohon inang yang paling banyak dijumpai adalah Hevea brasilliensis, ada 6 individu. Permukaan kulit Hevea brasiliensis memiliki karakteristik yang kasar dan banyak lekukan atau celah, banyak ditumbuhi epifit dengan jumlah 5 spesies. Epifit yang ditemukan terdiri atas Orchidaceae dan 4 suku tumbuhan paku-pakuan (Polypodiaceae, Aspleniaceae, Nephrolepidaceae dan Davalliaceae). Pyrrosia angustata, Microsorum superficiale, Lecanopteris sinuosa dan Drynaria sparsisora.merupakan spesies yang tercatat dari Polypodiaceae. Sementara itu suku lainnya hanya terdiri atas 1 spesies yaitu Aspleniaceae (Asplenium nidus), Nephrolepidaceae (Nephrolepis biserrata), Davalliaceae (Davallia divaricata) dan Orchidaceae (Dendrobium crumenatum). Spesies yang paling banyak tersebar pada petak pengamatan adalah Asplenium nidus, Pyrrosia angustata, Nephrolepis biserrata, Leconopteris sinuosa, Drynaria sparsisora, Dendrobium crumenatum dan Davallia divaricata. Selain terdapat di 7 petak pengamatan, Asplenium nidus juga menempati 7 spesies spesies pohon inang. Epifit yang memiliki Nilai Unggulan tertinggi adalah Lecanopteris sinuosa. Lima spesies epifit masing-masing terdapat di pangkal batang dan batang, dan empat spesies tercatat pada tajuk pohon.

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Abstract
Research on the epiphytic community was performed on a one-hectare sample in Hutan Kota Muhammad Sabki (HKMS), Kota Jambi. The data were collected on January to February 2012. A total of 489 individual trees was recorded, of which 25 individuals of 10 species were hosts of the epiphytes. The most common host tree was rubber tree, Hevea brasilliensis, totalling 6 individuals. The barks of Hevea brasiliensis trees have rough surfaces with many loopholes, overgrown by epiphytes totalling 5 species. The epiphytes recorded consist of Orchidaceae and four fern families (Polypodiaceae, Aspleniaceae, Nephrolepidaceae and Davalliaceae). Pyrrosia angustata, Microsorum superficiale, Lecanopteris sinuosa and Drynaria sparsisora are the species of Polypodiaceae recorded. Meanwhile, the other families each consists of only one species, i.e., Aspleniaceae (Asplenium nidus), Nephrolepidaceae (Nephrolepis biserrata), Davalliaceae (Davallia divaricata) and Orchidaceae (Dendrobium crumenatum). The species that are distributed in most quadrats are Asplenium nidus, Pyrrosia angustata, Nephrolepis biserrata, Leconopteris sinuosa, Drynaria sparsisora, Dendrobium crumenatum and Davallia divaricata. In addition to its occurrence in seven quadrats, Asplenium nidus inhabited also seven of the ten host-tree species. The epiphyte having the highest Prevalence Value was Lecopteris sinuosa. Five species of epiphytes, respectively, occurred on the bases of trees and tree, and only four species was recorded in the tree crowns.