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: Ocotea chiapensis (Lundell) Standl. & Steyerm. Accepted name: Ocotea chiapensis (Lundell) Standl. & Steyerm. Collector: Matuda Collection Number: 2042 Nomenklaturstatus: not accepted: heterotypic (taxonomic) synonym Family: Lauraceae Genus: Ocotea Comments: Possibly a member of the Ocotea insularis group. Imaging technique: Illustration Original type data: MEXICO: Chiapas, at Cerro Laguna, Mapastepec, January, 1938, Eizi Matuda 2042 (type in the University of Michigan Herbarium). License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17802782 Photo: Jens G. Rohwer
Title: Nectandra cissiflora Nees Accepted name: Nectandra cissiflora Nees Collector: Poeppig Collection Number: 3061 Nomenklaturstatus: accepted Family: Lauraceae Genus: Nectandra Imaging technique: Illustration Original type data: In Andibus Peruvianis legit cl. Poeppig. License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17801046 Photo: Jens G. Rohwer
Title: Nectandra citrifolia Mez & Rusby Accepted name: Nectandra citrifolia Mez & Rusby Collector: Bang Collection Number: 1673 Nomenklaturstatus: accepted Family: Lauraceae Genus: Nectandra Comments: The paper by Rusby is about plants collected in Bolivia by Miguel Bang, therefore the number in the protologue should be read as Bang 1673. Imaging technique: Illustration Original type data: Between Tipuani and Guanai, Dec. (1673). License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17801428 Photo: Jens G. Rohwer
Title: Nectandra colorata Lundell Accepted name: Damburneya colorata (Lundell) Trofimov Collector: Contreras Collection Number: 6999 Nomenklaturstatus: not accepted: homotypic (nomenclatural) synonym Family: Lauraceae Genus: Damburneya Comments: Treated as a synonym of Damburneya salicifolia (Kunth) Trofimov & Rohwer by some authors (e.g., Ulloa Ulloa 2024). Imaging technique: Illustration Original type data: GUATEMALA: Dept. Peten, 1 km NW of Cadenas, in high forest bordering Rio Sarstun, Aug. 10, 1967, Elias Contreras 6999 (LL, type), tree, 40 ft. high, 6 in. diam., flowers white, "laurel." License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17803444 Photo: Jens G. Rohwer
Title: Nectandra comasensis O.C. Schmidt Accepted name: Nectandra discolor (Kunth) Nees Collector: Weberbauer Collection Number: 6616 Nomenklaturstatus: not accepted: heterotypic (taxonomic) synonym Family: Lauraceae Genus: Nectandra Imaging technique: Illustration Original type data: Peru: Dept. Junin (Prov. Jauja), Rechtes Seitental des Rio de Comas, nördl. Comas, Gebüsch, an einem Bache, 2500–2600 m, 22. 4. 1913 — A. Weberbauer n. 6616 (Typus, Herb. Berlin! Herb. Field Mus. Chicago!). License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17802353 Photo: Jens G. Rohwer
Title: Nectandra coriacea f. dubia Mez Accepted name: Damburneya patens (Sw.) Trofimov Collector: Hahn Collection Number: 902 Nomenklaturstatus: not accepted: heterotypic (taxonomic) synonym Family: Lauraceae Genus: Damburneya Imaging technique: Illustration Original type data: Hab. in insula Martinique: Hahn n. 902. Floret Februario — Junio. (V. s. in herb. fere omnibus a me examinatis; varietatem in hb. Berol., Boiss.-Barbey., Brux., Candoll.) License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17803798 Photo: Jens G. Rohwer
Title: Nectandra crassifolia Benth. Accepted name: Ocotea benthamiana Mez Collector: Hartweg Collection Number: 1392 Nomenklaturstatus: not accepted: homotypic (nomenclatural) synonym Family: Lauraceae Genus: Ocotea Comments: Ocotea benthamiana Mez is based on Nectandra crassifolia Benth. Mez used the epithet "crassifolia" for a different species, based on Oreodaphne crassifolia Nees. As the paper by Bentham is about Hartweg's collections, the number "1392" is to be read as "Hartweg 1392." Imaging technique: Illustration Original type data: 1392. In declivitate occidentali Andium Quitensium versus Nanegal, in loco Chichipunta dicto. Arbor ab incolis Puchiri dictus, a Nectandris eodem nomine Brasilianis cognitis valde diversus. License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17801050 Photo: Jens G. Rohwer
Title: Nectandra crassipes Meisn. Accepted name: Nectandra longifolia (Ruiz & Pav.) Nees Collector: Ruiz Collection Number: s.n. Nomenklaturstatus: not accepted: homotypic (nomenclatural) synonym Family: Lauraceae Genus: Nectandra Comments: Nectandra crassipes Meisn. is an illegitimate replacement name for this species because Meissner (1864) cited Laurus longifolia Ruiz & Pav. as synonym. Imaging technique: Illustration Original type data: Habitat in Peruviae Andium nemoribus ad Patanahuas Provinciam. Floret Julio et Augusto. License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17804087 Photo: Jens G. Rohwer
Title: Nectandra crassipes Meisn. Accepted name: Nectandra longifolia (Ruiz & Pav.) Nees Collector: Ruiz Collection Number: s.n. Nomenklaturstatus: not accepted: homotypic (nomenclatural) synonym Family: Lauraceae Genus: Nectandra Comments: Nectandra crassipes Meisn. is an illegitimate replacement name for this species because Meissner (1864) cited Laurus longifolia Ruiz & Pav. as synonym. Imaging technique: Illustration Original type data: Habitat in Peruviae Andium nemoribus ad Patanahuas Provinciam. Floret Julio et Augusto. License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17804087 Photo: Jens G. Rohwer
Title: Nectandra cuneata Griseb. Accepted name: Ocotea cuneata (Griseb.) M. Gómez Collector: Wright Collection Number: 1412 Nomenklaturstatus: not accepted: homotypic (nomenclatural) synonym Family: Lauraceae Genus: Ocotea Comments: The paper by Grisebach is about Wright's collections from Cuba, therefore the numbers 1412 and 1413 are Wright's collection numbers. Imaging technique: Illustration Original type data: In sylvis densis ; prope Monte Verde (florif.), floribus flavo-viridulis, Aug. Prope La Perla Maio (fructif.). Arbor grandis. (1412, 1413.) License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17801052 Photo: Jens G. Rohwer
Title: Nectandra cuneata Griseb. Accepted name: Ocotea cuneata (Griseb.) M. Gómez Collector: Wright Collection Number: 1413 Nomenklaturstatus: not accepted: homotypic (nomenclatural) synonym Family: Lauraceae Genus: Ocotea Comments: The paper by Grisebach is about Wright's collections from Cuba, therefore the numbers 1412 and 1413 are Wright's collection numbers. Imaging technique: Illustration Original type data: In sylvis densis ; prope Monte Verde (florif.), floribus flavo-viridulis, Aug. Prope La Perla Maio (fructif.). Arbor grandis. (1412, 1413.) License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17801052 Photo: Jens G. Rohwer
Title: Nectandra cuneatocordata Mez Accepted name: Nectandra cuneatocordata Mez Collector: Ule Collection Number: 5712 Nomenklaturstatus: accepted Family: Lauraceae Genus: Nectandra Comments: The original spelling of the epithet "cuneato-cordata" had to be changed in accordance with Art. 60.11 of the ICBN International Code of Nomenclature (2018). Imaging technique: Illustration Original type data: Brasilia sept., civit. Amazonas, ad lacum prope Juruá Miry : Ule nº 5712. — Floret Julio. (Herb. Berol.) License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17801554 Photo: Jens G. Rohwer
Title: Nectandra cuspidata var. macrocarpa Nees Accepted name: Nectandra membranacea (Sw.) Griseb. Collector: Martius Collection Number: s.n. Nomenklaturstatus: not accepted: heterotypic (taxonomic) synonym Family: Lauraceae Genus: Nectandra Imaging technique: Illustration Original type data: In sylvis caeduis Provinciae Rio de Janeiro, Octobre, (de Martius.) License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17803800 Photo: Jens G. Rohwer
Title: Nectandra davidsoniana C.K. Allen Accepted name: Damburneya salicina (C.K. Allen) Trofimov & Rohwer Collector: Davidson Collection Number: 564 Nomenklaturstatus: not accepted: heterotypic (taxonomic) synonym Family: Lauraceae Genus: Damburneya Imaging technique: Illustration Original type data: Panama: Chiriqui: Chiquero, Boquete, alt. 1830 m., April 11, 1938, M. E. Davidson 564 (fl., fr., TYPE — A, Ch) (tree; flowers cream; fruits black, with red receptacle). License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17802784 Photo: Jens G. Rohwer
Title: Nectandra debilis Mez Accepted name: Nectandra debilis Mez Collector: Glaziou Collection Number: 8906 Nomenklaturstatus: accepted Family: Lauraceae Genus: Nectandra Imaging technique: Illustration Original type data: Hab. in Brasiliae prov. Minas Geraës, loco non indicato: St. Hilaire Cat. B² n. 37, Mendonça n. 257, Glaziou n. 8906; Espirito Santo: Bello ap. Schwacke n. 6457. (V. s. in herb. Berol., Mus. Brit., Kew., Paris., Warming. et a cl. Schwacke communicatam.) License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17800064 Photo: Jens G. Rohwer
Title: Nectandra debilis Mez Accepted name: Nectandra debilis Mez Collector: Mendonça Collection Number: 257 Nomenklaturstatus: accepted Family: Lauraceae Genus: Nectandra Imaging technique: Illustration Original type data: Hab. in Brasiliae prov. Minas Geraës, loco non indicato: St. Hilaire Cat. B² n. 37, Mendonça n. 257, Glaziou n. 8906; Espirito Santo: Bello ap. Schwacke n. 6457. (V. s. in herb. Berol., Mus. Brit., Kew., Paris., Warming. et a cl. Schwacke communicatam.) License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17800064 Photo: Jens G. Rohwer
Title: Nectandra dioica Mez Accepted name: Rhodostemonodaphne dioica (Mez) Rohwer Collector: Ule Collection Number: 9402 Nomenklaturstatus: not accepted: homotypic (nomenclatural) synonym Family: Lauraceae Genus: Rhodostemonodaphne Imaging technique: Illustration Original type data: Brasilien, Rio Acre (Ule no. 9402). License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17801874 Photo: Jens G. Rohwer
Title: Nectandra effusa Meisn. Accepted name: Nectandra turbacensis (Kunth) Nees Collector: Holton Collection Number: 285 Nomenklaturstatus: not accepted: heterotypic (taxonomic) synonym Family: Lauraceae Genus: Nectandra Imaging technique: Illustration Original type data: In Novae Granatae prov. Sta. Martha et Cauca (Funck n. 408 ! Holton n. 285 ! excl. sp. fruct., cfr. Mespilodaphne Novo-Granatensis). (v. s. in hb. Boiss. et Hook.) License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17801056 Photo: Jens G. Rohwer
Title: Nectandra elaiophora Barb. Rodr. Accepted name: Mespilodaphne cymbarum (Kunth) Trofimov Collector: Ducke Collection Number: RB19936 Nomenklaturstatus: not accepted: heterotypic (taxonomic) synonym Family: Lauraceae Genus: Ocotea Imaging technique: Illustration Original type data: (Barb. Rod. loc. cit. n. 646) HAB. ad ripas Rio Negro, in Prov. Amazon. Incolis Namuy, Nhamuy, vel Louro, Louro rosa, Louro preciso, Pau-rosa. Fruct. Jun. License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17802115 Photo: Jens G. Rohwer
Title: Nectandra firma Mez ex Glaz. Accepted name: Nectandra gardneri Meisn. Collector: Glaziou Collection Number: 22044 Nomenklaturstatus: not accepted: nomen nudum Family: Lauraceae Genus: Nectandra Comments: Nectandra firma Mez ex Glaz. is a nomen nudum. The information given by Glaziou, "Très grand arbre, fl. blanches" cannot be considered a diagnosis; the same phrase is used for several species. Imaging technique: Illustration Original type data: In herb. Paris., Berol., Kew., Genev., etc — Amoreira, au Capão da Cabeceira, Goyaz, nº 22044. License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17801697 Photo: Jens G. Rohwer
Title: Nectandra fulva Rohwer Accepted name: Nectandra fulva Rohwer Collector: Liesner Collection Number: 17338 Nomenklaturstatus: accepted Family: Lauraceae Genus: Nectandra Imaging technique: Illustration Original type data: Venezuela. Amazonas: Dep. Río Negro, 0-1 km E of Cerro de Neblina Base Camp on Río Mawarinuma, 140 m, 0°50'N, 66°10'W, 27 Nov. 1984 (fl, fr), Liesner & Kral 17338 (holotype, MO). Additional specimens examined. Venezuela. Amazonas: Dep. Río Negro, Neblina Base Camp on the Río Mawarinuma, 0°50'N, 66°10'W, 140 m, 17 July 1984 (fl), Davidse & Miller 27417 (MO); same data, 120 m, 17 July 1984 (fl), Davidse 27520 (MO); Cerro Neblina, between base camp and Puerto Chimo along Río Mawarinuma, 150-180 m, 0°50'N, ca. 66°08'W, 26 Apr. 1984 (fl), Gentry & Stein 46954 (MO); upstream end of large island in Río Mawarinuma just upstream from Neblina Base Camp, 0°50'N, 66°10'W, 160 m, 27 Nov. 1984 (fl, immature fr), Kral 71844 (MO); 1 - 3 km E of Cerro de Neblina Base Camp on Río Mawarinuma, 140 m, 0°50'N, 66°10'W, 8 Feb. 1984 (immature fr), Liesner 15739 (MO); same data (post fl), Liesner 15755 (MO); along Río Mawarinuma, 0-5 km E of Cerro de Neblina Base Camp, 140 m, 0°50'N, 66°10'W, 10 Mar. 1984 (immature fr), Liesner & Funk 16521 (MO); along Río Mawarinuma, 2-6 km E of Base Camp, between Base Camp and "Puerto Chimo" camp, 160 m, 0°50'N, 66°08'W, 26 Apr. 1885 (fl), Thomas 3189 (MO, NY, US). License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17805260 Photo: Jens G. Rohwer
Title: Nectandra furcata (Ruiz & Pav.) Nees Accepted name: Nectandra furcata (Ruiz & Pav.) Nees Collector: Ruiz Collection Number: s.n. Nomenklaturstatus: not accepted: homotypic (nomenclatural) synonym Family: Lauraceae Genus: Nectandra Comments: Treated as species of uncertain status by Rohwer 1993. "The type of Nectandra furcata is intermediate between N. lineatifolia and N. hihua. It has the flowers of the former, and the leaves of the latter." Imaging technique: Illustration Original type data: Habitat in Peruviae Andium nemoribus ad Vitoc arcem et Chacahuasi tractum. Floret Augusto et Septembri. License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17804081 Photo: Jens G. Rohwer
Title: Nectandra gardneri Meisn. Accepted name: Nectandra gardneri Meisn. Collector: Gardner Collection Number: 5151 Nomenklaturstatus: accepted Family: Lauraceae Genus: Nectandra Imaging technique: Illustration Original type data: In Brasiliâ. — In prov. Minas Geraës (Gardn. n. 5151 !). (v. s.) License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17801062 Photo: Jens G. Rohwer
Title: Nectandra gardneri var. laevigata Meisn. Accepted name: Nectandra gardneri Meisn. Collector: Pohl Collection Number: 2883 Nomenklaturstatus: not accepted: heterotypic (taxonomic) synonym Family: Lauraceae Genus: Nectandra Imaging technique: Illustration Original type data: In Brasiliâ. — In prov. Goyaz (Pohl n. 2883 !). (v. s. in hb. Vindob.) License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17803803