Kaliwatan sa lumot ang Collema leptaleum.^[1] Una ning gihulagway ni Edward Tuckerman.^[2] Ang Collema leptaleum sakop sa kahenera nga Collema, ug kabanay nga Collemataceae.^[1][3]

Kini nga matang hayop na sabwag sa:

• kasarangan nga Asya
• tropikong Asya
• Aprika
  • Madagascar
• Amihanang Amerika
• Habagatang Amerika
• Oseyaniya
  • Melanesia
  • Pederadong Estados sa Micronesia
  • Oseyaniya

Walay nalista nga matang nga sama niini.^[1]

1. ↑ ^{1.0 1.1 1.2} Roskov Y., Kunze T., Orrell T., Abucay L., Paglinawan L., Culham A., Bailly N., Kirk P., Bourgoin T., Baillargeon G., Decock W., De Wever A., Didžiulis V. (ed) (2019). "Species 2000 & ITIS Catalogue of Life: 2019 Annual Checklist". Species 2000: Naturalis, Leiden, the Netherlands. ISSN 2405-884X. TaxonID: 25888705. Retrieved 2019-11-11. {{cite web}}: |author= has generic name (help)CS1 maint: multiple names: authors list (link)
2. ↑ Tuck. in Tuckerman (1866) , In: Proc. Amer. Acad. Arts Sci. Vol.: 6 p. 263
3. ↑ "Rambold G. (lead editor; for detailed information see http://liaslight.lias.net/About/Impressum.html and http://liasnames.lias.net/About/Impressum.html) (2019). LIAS: A Global Information System for Lichenized and Non-Lichenized Ascomycetes (version Dec 2015). In: Species 2000 & ITIS Catalogue of Life, 2019 Annual Checklist (Roskov Y., Ower G., Orrell T., Nicolson D., Bailly N., Kirk P.M., Bourgoin T., DeWalt R.E., Decock W., Nieukerken E. van, Zarucchi J., Penev L., eds.). Digital resource at www.catalogueoflife.org/annual-checklist/2019. Species 2000: Naturalis, Leiden, the Netherlands. ISSN 2405-884X."