Sains Malaysiana 42(5)(2013):
693–696
Systematic Significance of Stipe
Anatomy of Selaginella (Selaginellaceae) in Peninsular Malaysia
(Kepentingan Sistematik Anatomi Stip Selaginella (Selaginellaceae)
di Semenanjung Malaysia)
Haja Maideen*, A. Nor Hazwani, Z. Nurfarahain, A. Damanhuri, T. Noraini, L.
Qistina & M. Masnoryante
School of Environmental & Natural Resource Sciences, Faculty
of Science & Technology
Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia
G. Rusea
Department of Biology, Faculty of Science, Universiti Putra
Malaysia
43400, Serdang, Selangor, Malaysia
Diserahkan: 12 Mac 2012/Diterima: 17 September 2012
ABSTRACT
An anatomical study was carried out on 14 taxa belonging to
Selaginellaceae in an attempt to study their stipe anatomical characteristics
and to provide anatomical data for the selected taxa in Selaginellaceae. Out of
29 taxa of Selaginellaceae recorded in Peninsular Malaysia, 14 taxa have been
selected namely Selaginella alutacia, S.
argentea, S. frondosa, S. intermedia var. intermedia, S. intermedia var.
dolichocentrus, S. mayeri, S. morganii, S. ornata, S. plana, S. polita, S.
roxburghii var. roxburghii, S. stipulata, S. wallichii and S. willdenowii. Method
used in this study was sectioning using sliding microtome. Findings in this
study have shown that Selaginellaceae species studied can be clustered into two
groups based on the stipe stellar systems, which are monostelic and tristelic
groups. There are some variations exist in the cross sections of the stipes of
the same species due to the presence and absence of the leaf trace. Each
species is proved to have distinct stipe anatomical characteristics that can be
used to differentiate species in Selaginellaceae.
Keyword: Anatomy; Peninsular Malaysia; Selaginellaceae; stele;
stipe
ABSTRAK
Kajian anatomi telah dilakukan ke atas 14 takson
daripada famili Selaginellaceae untuk melihat ciri anatomi stip dan menyediakan
data anatomi untuk takson terpilih daripada famili Selaginellaceae. Sejumlah 14 daripada 29 takson Selaginellaceae
yang terdapat di Semenanjung Malaysia telah dipilih iaitu Selaginella alutacia, S. argentea, S. frondosa,
S. intermedia var. intermedia, S. intermedia var. dolichocentrus, S. mayeri, S.
morganii, S. ornata, S. plana, S. polita, S. roxburghii var. roxburghii, S.
stipulata, S. wallichii and S. willdenowii. Kaedah yang
digunakan dalam penyelidikan ini ialah hirisan dengan mikrotom gelongsor. Hasil kajian menunjukkan spesies Selaginellaceae boleh
dikelompokkan kepada dua kumpulan berdasarkan sistem stel pada stip iaitu
kumpulan monostelik dan tristelik. Terdapat variasi pada ciri anatomi
keratan rentas stip dalam spesies yang sama disebabkan
kehadiran dan ketidakhadiran kesan daun pada stip. Setiap spesies kajian
dibuktikan mempunyai ciri anatomi stip yang berbeza yang boleh digunakan untuk
pembezaan spesies dalam famili Selaginellaceae.
Kata kunci: Anatomi; Selaginellaceae; Semenanjung
Malaysia; stel; stip
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*Pengarang
untuk surat-menyurat; email: deen@ukm.my