ABSTRACT
Nepenthes adalah salah satu genus tumbuhan yang memiliki karakter kunci identifikasi pada organ daun dan kantong sebagai modifikasi. Akan tetapi, luasnya variasi morfologi pada organ tersebut dalam satu spesies dan antar spesies dapat menyebabkan kesulitan dalam proses identifikasi. Penelitian dilakukan untuk menyediakan alternatif proses identifikasi melalui karakter anatomi. Taman Nasional Kerinci Seblat dipilih sebagai lokasi penelitian disebabkan kurangnya data taksonomi terbaru spesies alami Nepenthes di sana. Lima spesies Nepenthes telah dikoleksi dari Danau Lingkat dan Danau Gunung Tujuh. Pengamatan helaian daun dan kantong dilakukan terpisah. Kantong dibelah menjadi bagian tutup kantong dan badan kantong, kemudian diamati menggunakan mikroskop stereo. Helaian daun dipisahkan menjadi sayatan paradermal dan transversal, didehidrasi menggunakan alkohol, dan diwarnai menggunakan safranin dan fast green. Sayatan diamati menggunakan mikroskop cahaya. Hasil pengamatan menunjukkan bahwa terdapat sebelas karakter pembeda antar spesies, yaitu penyebaran kelenjar digesti di pangkal kantong, bentuk kelenjar digesti di pangkal kantong, kerapatan kelenjar digesti di pangkal kantong, kerapatan stomata, panjang stomata, bentuk kelenjar sessile, kerapatan kelenjar sessile, distribusi trikom, ketebalan kutikula adaksial, ketebalan hipodermis adaksial, dan jumlah lapisan hipodermis adaksial. Selain itu, telah dilakukan pelengkapan data terhadap kelenjar nektar.

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ABSTRACT
Nepenthes is one of genera which have key characters on leaf and pitcher as modification. However, wide varieties of morphological features on pitcher intraspecies and between species could be tough for identification proccess. The objective was to provide alternative identification proccess by anatomical features. Kerinci Seblat National park were choosen because lack of update data on wild type Nepenthes there. Five Nepenthes were collected from Lingkat Lake and Gunung Tujuh Lake. Observation on leaves and pitcher divided to two different methods. Pitcher were separated into lid and body part, then observed by stereo microscop. Leaves were separated into paradermal and transversal slices, dehydrated used alcohol, and stained used safranin and fast green. Slices observed by light microscop. Result show there are eleven different characters between species, that rsquo s are digestive glands distribution on pitcher base, digestive glands shape on pitcher base, digestive glands density on pitcher base, stomatal density, stomatal length, sessile glands shape, sessile glands shape, trichoma distribution, adaxial cuticle thickness, adaxial hypodermal thickness, and amount of adaxial hipodermal layer. Besides, updating data on nectary glands has been done.