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: Acrodiclidium kunthianum Nees Accepted name: Rhodostemonodaphne kunthiana (Nees) Rohwer Collector: Poiteau Collection Number: s.n. Nomenklaturstatus: not accepted: homotypic (nomenclatural) synonym Family: Lauraceae Genus: Rhodostemonodaphne Comments: Remnants of flower parts from the rim of young cupules, from the holotype of Acrodiclidium kunthianum Nees (= Rhodostemonodaphne kunthiana (Nees) Rohwer), Poiteau s.n. (B), barcode B 10 0247364. This specimen (see Digital Herbarium at http://ww2.bgbm.org/herbarium, ImageID 253242) is from the Kunth herbarium and bears the handwriting of Nees, so that there is no doubt that it is the holotype. Imaging technique: Illustration Original type data: Crescit in Guiana Gallica, (Poiteau.) Vidi in Herb. Kunthiano absque floribus perfectis. License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17804309 Photo: Jens G. Rohwer
Title: Acrodiclidium wrightii Meisn. Accepted name: Ocotea wrightii (Meisn.) Mez Collector: Wright Collection Number: 481 Nomenklaturstatus: not accepted: homotypic (nomenclatural) synonym Family: Lauraceae Genus: Ocotea Comments: Obviously the numbers have been mixed up. Only the specimen in the De Candolle herbarium in Geneva represents the species described by Meissner. In most herbaria, Wright 481 is Licaria triandra. Imaging technique: Illustration Original type data: In Cubâ orientali (Wright n. 481!). A. Jamaicense Griseb. l. c. (ex parte). (v. s. in hb. DC). License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17804703 Photo: Jens G. Rohwer
Title: Actinodaphne glauca Nees Accepted name: Actinodaphne glauca Nees Collector: Huber Collection Number: 651 Nomenklaturstatus: accepted Family: Lauraceae Genus: Actinodaphne Comments: Floral details of male flowers Imaging technique: Illustration License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17805175 Photo: Jens G. Rohwer
Title: Actinodaphne glauca Nees Accepted name: Actinodaphne glauca Nees Collector: Huber Collection Number: 651 Nomenklaturstatus: accepted Family: Lauraceae Genus: Actinodaphne Comments: Floral details of male flower Imaging technique: Illustration License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17805175 Photo: Jens G. Rohwer
Title: Actinodaphne procera (Blume) Nees Accepted name: Actinodaphne procera (Blume) Nees Collector: coll.ign. Collection Number: L908.98-21 Nomenklaturstatus: accepted Family: Lauraceae Genus: Actinodaphne Comments: Drawing of inflorescence and inflorescence diagram, from specimen L908.98-21 Imaging technique: Illustration License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17805179 Photo: Jens G. Rohwer
Title: Actinodaphne pruinosa Nees Accepted name: Actinodaphne pruinosa Nees Collector: coll.ign. Collection Number: FRI 2073 Nomenklaturstatus: accepted Family: Lauraceae Genus: Actinodaphne Comments: Inflorescence diagram Imaging technique: Illustration License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17805439 Photo: Jens G. Rohwer
Title: Agathophyllum neesianum Blume Accepted name: Ocotea cupularis (Lam.) Cordem. Collector: Sieber Collection Number: 128 Nomenklaturstatus: not accepted: heterotypic (taxonomic) synonym Family: Lauraceae Genus: Ocotea Imaging technique: Illustration Original type data: Oreodaphne (Ceramophora) cupularis Nees ab Esenb. Laur. p.438. 42 (excl. Syn. Lam. et tab cit.). - Laurus cupularis (haud Lam.!) Herb. Sieb. Maurit. No. 128. - Laurus neesiana Herb. Schott. - In insulis Mascarenis. License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17804444 Photo: Jens G. Rohwer
Title: Ocotea insularis (Meisn.) Mez Accepted name: Ocotea insularis (Meisn.) Mez Collector: Grayum Collection Number: 8241 Nomenklaturstatus: accepted Family: Lauraceae Genus: Ocotea Imaging technique: Illustration License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17800241 Photo: Jens G. Rohwer
Title: Aiouea spec.? Field 537 Accepted name: Aiouea Aubl. Collector: Field Collection Number: 537 Nomenklaturstatus: accepted Family: Lauraceae Genus: Aiouea Comments: Determination uncertain. Imaging technique: Illustration License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/40034879 Photo: Jens G. Rohwer
Title: Aiouea lundelliana C.K. Allen Accepted name: Ocotea insularis (Meisn.) Mez Collector: Allen Collection Number: 1570 Nomenklaturstatus: not accepted: heterotypic (taxonomic) synonym Family: Lauraceae Genus: Ocotea Comments: Rohwer (1986) had seen only the paratypes Allen 1570 (GH) and Davidson 435 (A), but that convinced him that this was at least a member of the Ocotea insularis group, with a variable number of pollen sacs per anther. Burger (1988) placed A. lundelliana in synonymy of O. insularis. Imaging technique: Illustration Original type data: Panama: Chiriquí: In shady moist habitat, Río Chiriquí Viejo Valley, near El Volcán, just above the house near Colton's coffe [sic!] finca, August 10, 1938, P. White 225 (fl., TYPE, Mo) (tree 12-15 m. tall, 30-35 cm. in diam.; flowers yellowish green, fragrant) ; vicinity of Cerro Punta, P. H. Allen 1570 (fr., Ch, GH, Mo) (tree 30 m.) ; rain-forest, Bajo Chorro, Boquete, Davidson 435 (fr., A, Ch, Mo). License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17802830 Photo: Jens G. Rohwer
Title: Aiouea floccosa (van der Werff) R. Rohde Accepted name: Aiouea floccosa (van der Werff) R. Rohde Collector: Weigend Collection Number: 9579 Nomenklaturstatus: accepted Family: Lauraceae Genus: Aiouea Imaging technique: Illustration License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/100469878 Photo: Jens G. Rohwer
Title: Aiouea spec., Kubitzki 79-273 Accepted name: Aiouea Aubl. Collector: Kubitzki Collection Number: 79-273 Nomenklaturstatus: accepted Family: Lauraceae Genus: Aiouea Imaging technique: Illustration License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/40034879 Photo: Jens G. Rohwer
Title: Aiouea spec.? Dorr 5073 Accepted name: Aiouea Aubl. Collector: Dorr Collection Number: 5073 Nomenklaturstatus: accepted Family: Lauraceae Genus: Aiouea Imaging technique: Illustration License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/40034879 Photo: Jens G. Rohwer
Title: Aiouea spec., Wendt 3052 Accepted name: Aiouea Aubl. Collector: Wendt Collection Number: 3052 Nomenklaturstatus: accepted Family: Lauraceae Genus: Aiouea Imaging technique: Illustration License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/40034879 Photo: Jens G. Rohwer
Title: Aiouea vexatrix van der Werff Accepted name: Ocotea aff. insularis (Meisn.) Mez Collector: McPherson Collection Number: 7921 Nomenklaturstatus: not accepted: heterotypic (taxonomic) synonym Family: Lauraceae Genus: Ocotea Comments: According to phylogenetic analyses (Trofimov et al., 2019) a member of the Ocotea insularis group. Imaging technique: Illustration Original type data: Type: Panama. Panamá: Cerro Campana, above Capira, elev. ca. 900 m, 8°40'N, 79°50'W. Slender treelet, 3 m tall. Stem with small red ants in center. Perianth green. McPherson 9226 (holotype, MO). Paratypes (all MO). Panama. Panamá: Cerro Campana, Correa 295, 1026; same locality, Croat 12153, 14689, 17203, 25120, 35960; same locality, Garner 13; same locality, Gentry 1832, 5776; same locality, Hamilton 4056, 4061; same locality, Hammel 3776; same locality, Kirkbride 245; same locality, Luteyn 1812; same locality, McPherson 7461,7921; same locality, Miller 975; same locality, Mori 1917, 2457, 7701; same locality, Nee 11611; same locality, Sytsma 1150, 2942, 2962; Cerro Trinidad, Kirkbride 1656. Colón: Santa Rita Ridge Road, Correa 1056; same locality, Dressler 3705; same locality, Foster 1735; same locality, Sytsma 4238, 4252; Cerro Brewster, de Nevers 5573. Comarca de San Blas: El Llano–Carti Road, de Nevers 4240. License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17804374 Photo: Jens G. Rohwer
Title: Anaueria brasiliensis Kosterm. Accepted name: Anaueria brasiliensis Kosterm. Collector: coll.ign. Nomenklaturstatus: accepted Family: Lauraceae Genus: Anaueria Comments: Determined by Kostermans, collector not indicated. Drawn on DIN A4 paper (210 x 297 mm). Imaging technique: Illustration License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17804054 Photo: Jens G. Rohwer
Title: Andea tunquiensis (van der Werff) van der Werff Accepted name: Andea tunquiensis (van der Werff) van der Werff Collector: Weigend Collection Number: 9568 Nomenklaturstatus: accepted Family: Lauraceae Genus: Andea Imaging technique: Illustration License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/100534537 Photo: Jens G. Rohwer
Title: Aniba longifolia Schwacke & Mez Accepted name: Ocotea sassafras (Meisn.) Mez Collector: Araujo Collection Number: 6678 Nomenklaturstatus: not accepted: heterotypic (taxonomic) synonym Family: Lauraceae Genus: Ocotea Imaging technique: Illustration Original type data: Habitat in Brasiliae prov. Minas Geraës ad Rio Novo: Araujo in herb. Schwacke. No. 6678. — (V. s. a cl. Schwacke benigne communicatam.) License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17803753 Photo: Jens G. Rohwer
Title: Aniba bracteata (Nees) Mez Accepted name: Aniba bracteata (Nees) Mez Collector: Duss Collection Number: 3433 Nomenklaturstatus: accepted Family: Lauraceae Genus: Aniba Imaging technique: Illustration License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17800121 Photo: Jens G. Rohwer
Title: Aniba ramageana Mez Accepted name: Aniba ramageana Mez Collector: Ernst Collection Number: 2177 Nomenklaturstatus: accepted Family: Lauraceae Genus: Aniba Imaging technique: Illustration License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17800142 Photo: Jens G. Rohwer
Title: Apollonias barbujana (Cav.) A. Braun Accepted name: Persea barbujana (Cav.) Mabb. & Nieto Fel. Collector: van Steenis Collection Number: 21567 Nomenklaturstatus: not accepted: homotypic (nomenclatural) synonym Family: Lauraceae Genus: Apollonias Imaging technique: Illustration License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17806206 Photo: Jens G. Rohwer
Title: Aspidostemon capuronii van der Werff Accepted name: Aspidostemon capuronii van der Werff Collector: Capuron Collection Number: SF 28397 Nomenklaturstatus: accepted Family: Lauraceae Genus: Aspidostemon Comments: Paratype Service Forestier 28397; Drawing of floral details. Imaging technique: Illustration Original type data: Madagascar, Antanandava, P.K. 45 de la route Moramanga-Anosibe, [19°26'S, 48°12'E], XI.1968, fl., Service Forestier 28458 (holo-, P; iso-, HBG, MO, P, TEF). Paratypes. - Madagascar. Ankazomanitra, Anosibe, Moramanga, [19°26'S, 48°12'E], fl., Service Forestier 26825 (MO, P, TEF). - Antanandava, km 45 of the road Moramanga-Anosibe, [19°26'S, 48°12'E], fl., Service Forestier 28397 (HBG, K, MO, P, TEF). - Without locality, fl., coll. unknown 29 (MO, P). License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/50283580 Photo: Jens G. Rohwer
Title: Aspidostemon glandulosus Rohwer Accepted name: Aspidostemon glandulosus Rohwer Collector: coll.ign. Collection Number: SF 16534 Nomenklaturstatus: accepted Family: Lauraceae Genus: Aspidostemon Imaging technique: Illustration Original type data: Holotype: Service Forestier 16534 (P): Madagascar, canton d'Andranofotsy, district Masoantsetra, Farankaraina, forêt côtière, alt. 10 m, 7. Feb. 1957. License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17804334 Photo: Jens G. Rohwer
Title: Aspidostemon inconspicuus Rohwer Accepted name: Aspidostemon inconspicuus Rohwer Collector: coll.ign. Collection Number: SF 12355 Nomenklaturstatus: accepted Family: Lauraceae Genus: Aspidostemon Imaging technique: Illustration Original type data: Holotype: Service Forestier 12355 (P, Isotype BO n.v.): Madagascar, Menagise-Brickaville, 8. Dec. 1954. License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17804327