Botanical drawings remain an indispensable tool in contemporary botanical research and education, significantly supporting both teaching and scientific work. They allow precise documentation and identification of plant species by highlighting specific features that are often not as clearly visible in photographs.
The family Lauraceae, commonly known as the laurel or avocado family, is one of the most frequent and ecologically significant woody plant families in humid tropical and subtropical forests worldwide. However, our knowledge of this group is still incomplete. Its phylogeny is only partially resolved, and we know little about the biology of most species. Many species within the larger genera are almost impossible to identify due to a lack of keys and recent revisions.
The majority of the detailed drawings in this collection were created between 1982 and 1986 by Jens G. Rohwer during his dissertation work, in which he examined numerous specimens from many herbaria around the world and analyzed their structures. Prof. Dr. Jens G. Rohwer held the position of professor of botany (systematics, evolution, and biodiversity of plants) at our university from 2000 until 2024.
Most drawings were made with a camera lucida, on DIN A6 paper (105 x 148 mm).
From this collection a total of 1477 digital objects are displayed in FUNDus
Photo: Jens G. Rohwer
Title: Cryptocarya trianthera Kosterm. Accepted name: Aspidostemon triantherus (Kosterm.) Rohwer Collector: coll.ign. Collection Number: SF 12064 Nomenklaturstatus: not accepted: homotypic (nomenclatural) synonym Family: Lauraceae Genus: Aspidostemon Imaging technique: Illustration Original type data: Holotype : S. F. 12064 (P). Esiamara, Mahatalaky, Fort-Dauphin, déc., fr., fl., Service Forestier 12064 (BO, P); ibid., oct., S. F. 10866 (P); bords de la piste Andrahanjo-Ambongatro (Dt. de Sambava), nov., fr. verts, S. F. 732 (BO, P); Forêt orientale, massif de l'Antsitondroina de Mahalevona (N. du la presqu'île de Masala), déc., fl., Capuron, S. F. 8689 (P); sur le versant S. du col de Maningotra (vers 300 m d'altitude), Route Fort-Dauphin-Ifarantoy-Ranomagama, sept., fl., Capuron, S. F. 8512 (P); Roussettes, J. B. 19, Diego Suarez, avr., stér., S. F. 13015 (P); Soanierana, Ivongo, déc., boutons de fleurs, S. F. 2488 (BO, P). License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17803105 Photo: Jens G. Rohwer
Title: Cryptocarya trianthera Kosterm. Accepted name: Aspidostemon triantherus (Kosterm.) Rohwer Collector: coll.ign. Collection Number: SF 12064 Nomenklaturstatus: not accepted: homotypic (nomenclatural) synonym Family: Lauraceae Genus: Aspidostemon Imaging technique: Illustration Original type data: Holotype : S. F. 12064 (P). Esiamara, Mahatalaky, Fort-Dauphin, déc., fr., fl., Service Forestier 12064 (BO, P); ibid., oct., S. F. 10866 (P); bords de la piste Andrahanjo-Ambongatro (Dt. de Sambava), nov., fr. verts, S. F. 732 (BO, P); Forêt orientale, massif de l'Antsitondroina de Mahalevona (N. du la presqu'île de Masala), déc., fl., Capuron, S. F. 8689 (P); sur le versant S. du col de Maningotra (vers 300 m d'altitude), Route Fort-Dauphin-Ifarantoy-Ranomagama, sept., fl., Capuron, S. F. 8512 (P); Roussettes, J. B. 19, Diego Suarez, avr., stér., S. F. 13015 (P); Soanierana, Ivongo, déc., boutons de fleurs, S. F. 2488 (BO, P). License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17803105 Photo: Jens G. Rohwer
Title: Cryptocarya trianthera Kosterm. Accepted name: Aspidostemon triantherus (Kosterm.) Rohwer Collector: coll.ign. Collection Number: SF 732 Nomenklaturstatus: not accepted: homotypic (nomenclatural) synonym Family: Lauraceae Genus: Aspidostemon Imaging technique: Illustration Original type data: Holotype : S. F. 12064 (P). Esiamara, Mahatalaky, Fort-Dauphin, déc., fr., fl., Service Forestier 12064 (BO, P); ibid., oct., S. F. 10866 (P); bords de la piste Andrahanjo-Ambongatro (Dt. de Sambava), nov., fr. verts, S. F. 732 (BO, P); Forêt orientale, massif de l'Antsitondroina de Mahalevona (N. du la presqu'île de Masala), déc., fl., Capuron, S. F. 8689 (P); sur le versant S. du col de Maningotra (vers 300 m d'altitude), Route Fort-Dauphin-Ifarantoy-Ranomagama, sept., fl., Capuron, S. F. 8512 (P); Roussettes, J. B. 19, Diego Suarez, avr., stér., S. F. 13015 (P); Soanierana, Ivongo, déc., boutons de fleurs, S. F. 2488 (BO, P). License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17803105 Photo: Jens G. Rohwer
Title: Cryptocarya trianthera Kosterm. Accepted name: Aspidostemon triantherus (Kosterm.) Rohwer Collector: coll.ign. Collection Number: SF 8512 Nomenklaturstatus: not accepted: homotypic (nomenclatural) synonym Family: Lauraceae Genus: Aspidostemon Imaging technique: Illustration Original type data: Holotype : S. F. 12064 (P). Esiamara, Mahatalaky, Fort-Dauphin, déc., fr., fl., Service Forestier 12064 (BO, P); ibid., oct., S. F. 10866 (P); bords de la piste Andrahanjo-Ambongatro (Dt. de Sambava), nov., fr. verts, S. F. 732 (BO, P); Forêt orientale, massif de l'Antsitondroina de Mahalevona (N. du la presqu'île de Masala), déc., fl., Capuron, S. F. 8689 (P); sur le versant S. du col de Maningotra (vers 300 m d'altitude), Route Fort-Dauphin-Ifarantoy-Ranomagama, sept., fl., Capuron, S. F. 8512 (P); Roussettes, J. B. 19, Diego Suarez, avr., stér., S. F. 13015 (P); Soanierana, Ivongo, déc., boutons de fleurs, S. F. 2488 (BO, P). License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17803105 Photo: Jens G. Rohwer
Title: Cryptocarya trianthera Kosterm. Accepted name: Aspidostemon triantherus (Kosterm.) Rohwer Collector: coll.ign. Collection Number: SF 8512 Nomenklaturstatus: not accepted: homotypic (nomenclatural) synonym Family: Lauraceae Genus: Aspidostemon Imaging technique: Illustration Original type data: Holotype : S. F. 12064 (P). Esiamara, Mahatalaky, Fort-Dauphin, déc., fr., fl., Service Forestier 12064 (BO, P); ibid., oct., S. F. 10866 (P); bords de la piste Andrahanjo-Ambongatro (Dt. de Sambava), nov., fr. verts, S. F. 732 (BO, P); Forêt orientale, massif de l'Antsitondroina de Mahalevona (N. du la presqu'île de Masala), déc., fl., Capuron, S. F. 8689 (P); sur le versant S. du col de Maningotra (vers 300 m d'altitude), Route Fort-Dauphin-Ifarantoy-Ranomagama, sept., fl., Capuron, S. F. 8512 (P); Roussettes, J. B. 19, Diego Suarez, avr., stér., S. F. 13015 (P); Soanierana, Ivongo, déc., boutons de fleurs, S. F. 2488 (BO, P). License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17803105 Photo: Jens G. Rohwer
Title: Cryptocarya velutina Kosterm. Accepted name: Cryptocarya velutina Kosterm. Collector: Scott-Elliot Collection Number: 3070 Nomenklaturstatus: accepted Family: Lauraceae Genus: Cryptocarya Imaging technique: Illustration Original type data: Typus : Scott Elliot 3070 [P.]. License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17802624 Photo: Jens G. Rohwer
Title: Damburneya aff. coriacea (Sw.) Trofimov & Rohwer Accepted name: Damburneya aff. coriacea (Sw.) Trofimov & Rohwer Collector: Tun Collection Number: 2164 Nomenklaturstatus: accepted Family: Lauraceae Genus: Damburneya Imaging technique: Illustration License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/100450095 Photo: Jens G. Rohwer
Title: Damburneya aff. mirafloris (van der Werff) Trofimov & Rohwer Accepted name: Damburneya aff. mirafloris (van der Werff) Trofimov & Rohwer Collector: Cook Collection Number: 786 Nomenklaturstatus: accepted Family: Lauraceae Genus: Damburneya Imaging technique: Illustration License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/100450131 Photo: Jens G. Rohwer
Title: Damburneya aff. purpurea (Ruiz & Pav.) Trofimov Accepted name: Damburneya aff. purpurea (Ruiz & Pav.) Trofimov Collector: Breedlove Collection Number: 28566 Nomenklaturstatus: accepted Family: Lauraceae Genus: Damburneya Imaging technique: Illustration License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/100450138 Photo: Jens G. Rohwer
Title: Damburneya aff. purpurea (Ruiz & Pav.) Trofimov Accepted name: Damburneya aff. purpurea (Ruiz & Pav.) Trofimov Collector: Duque Collection Number: 32 Nomenklaturstatus: accepted Family: Lauraceae Genus: Damburneya Imaging technique: Illustration License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/100450138 Photo: Jens G. Rohwer
Title: Damburneya aff. salicifolia (Kunth) Trofimov & Rohwer Accepted name: Damburneya aff. salicifolia (Kunth) Trofimov & Rohwer Collector: Davidse Collection Number: 32782 Nomenklaturstatus: accepted Family: Lauraceae Genus: Damburneya Imaging technique: Illustration License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/100450533 Photo: Jens G. Rohwer
Title: Damburneya ambigens (S.F. Blake) Trofimov Accepted name: Damburneya ambigens (S.F. Blake) Trofimov Collector: Wendt Collection Number: 3190 Nomenklaturstatus: accepted Family: Lauraceae Genus: Damburneya Imaging technique: Illustration License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/100450087 Photo: Jens G. Rohwer
Title: Damburneya ambigens (S.F. Blake) Trofimov Accepted name: Damburneya ambigens (S.F. Blake) Trofimov Collector: Wendt Collection Number: 3190 Nomenklaturstatus: accepted Family: Lauraceae Genus: Damburneya Imaging technique: Illustration License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/100450087 Photo: Jens G. Rohwer
Title: Damburneya cf. salicifolia (Kunth) Trofimov & Rohwer Accepted name: Damburneya cf. salicifolia (Kunth) Trofimov & Rohwer Collector: Breedlove Collection Number: 24564 Nomenklaturstatus: accepted Family: Lauraceae Genus: Damburneya Imaging technique: Illustration License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/100450533 Photo: Jens G. Rohwer
Title: Damburneya cf. salicifolia (Kunth) Trofimov & Rohwer Accepted name: Damburneya cf. salicifolia (Kunth) Trofimov & Rohwer Collector: Molina Collection Number: 20454 Nomenklaturstatus: accepted Family: Lauraceae Genus: Damburneya Imaging technique: Illustration License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/100450533 Photo: Jens G. Rohwer
Title: Damburneya cf. salicifolia (Kunth) Trofimov & Rohwer Accepted name: Damburneya cf. salicifolia (Kunth) Trofimov & Rohwer Collector: Valerio Collection Number: 2746 Nomenklaturstatus: accepted Family: Lauraceae Genus: Damburneya Imaging technique: Illustration License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/100450533 Photo: Jens G. Rohwer
Title: Damburneya colorata (Lundell) Trofimov Accepted name: Damburneya colorata (Lundell) Trofimov Collector: Contreras Collection Number: 7877 Nomenklaturstatus: accepted Family: Lauraceae Genus: Damburneya Imaging technique: Illustration License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/100450091 Photo: Jens G. Rohwer
Title: Damburneya colorata (Lundell) Trofimov Accepted name: Damburneya colorata (Lundell) Trofimov Collector: Hammel Collection Number: 15466 Nomenklaturstatus: accepted Family: Lauraceae Genus: Damburneya Imaging technique: Illustration License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/100450091 Photo: Jens G. Rohwer
Title: Damburneya colorata (Lundell) Trofimov Accepted name: Damburneya colorata (Lundell) Trofimov Collector: Sinaca Collection Number: 246 Nomenklaturstatus: accepted Family: Lauraceae Genus: Damburneya Imaging technique: Illustration License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/100450091 Photo: Jens G. Rohwer
Title: Damburneya coriacea (Sw.) Trofimov & Rohwer Accepted name: Damburneya coriacea (Sw.) Trofimov & Rohwer Collector: Little Collection Number: 13436 Nomenklaturstatus: accepted Family: Lauraceae Genus: Damburneya Imaging technique: Illustration License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/100450095 Photo: Jens G. Rohwer
Title: Damburneya coriacea (Sw.) Trofimov & Rohwer Accepted name: Damburneya coriacea (Sw.) Trofimov & Rohwer Collector: Lundell Collection Number: 7435 Nomenklaturstatus: accepted Family: Lauraceae Genus: Damburneya Imaging technique: Illustration License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/100450095 Photo: Jens G. Rohwer
Title: Damburneya coriacea (Sw.) Trofimov & Rohwer Accepted name: Damburneya coriacea (Sw.) Trofimov & Rohwer Collector: Vásquez Collection Number: 1575 Nomenklaturstatus: accepted Family: Lauraceae Genus: Damburneya Imaging technique: Illustration License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/100450095 Photo: Jens G. Rohwer
Title: Damburneya cufodontisii (O.C. Schmidt) Trofimov & Rohwer Accepted name: Damburneya cufodontisii (O.C. Schmidt) Trofimov & Rohwer Collector: Burger Collection Number: 7698 Nomenklaturstatus: accepted Family: Lauraceae Genus: Damburneya Imaging technique: Illustration License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/100450094 Photo: Jens G. Rohwer
Title: Damburneya gentlei (Lundell) Trofimov Accepted name: Damburneya gentlei (Lundell) Trofimov Collector: Lundell Collection Number: 20683 Nomenklaturstatus: accepted Family: Lauraceae Genus: Damburneya Imaging technique: Illustration License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/100450096