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: Oreodaphne langsdorffii Meisn. Accepted name: Ocotea langsdorffii (Meisn.) Mez Collector: Riedel Collection Number: 1092 Nomenklaturstatus: not accepted: homotypic (nomenclatural) synonym Family: Lauraceae Genus: Ocotea Imaging technique: Illustration Original type data: In Brasiliâ, prov. Minas Geraës. (Riedel, n. 1092 !). (v. s. in hb. Petrop.) License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17804764 Photo: Jens G. Rohwer
Title: Oreodaphne leptobotra (Ruiz & Pav.) Nees Accepted name: Ocotea leptobotra (Ruiz & Pav.) Mez Collector: Ruiz Collection Number: s.n. Nomenklaturstatus: not accepted: homotypic (nomenclatural) synonym Family: Lauraceae Genus: Ocotea Imaging technique: Illustration Original type data: Habitat in Peruviae Andium nemoribus ad Macora praedium. Floret Julio et Augusto. License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17804258 Photo: Jens G. Rohwer
Title: Oreodaphne leptobotra var. petiolaris Meisn. Accepted name: Ocotea leptobotra (Ruiz & Pav.) Mez Collector: Spruce Collection Number: 3918 Nomenklaturstatus: not accepted: heterotypic (taxonomic) synonym Family: Lauraceae Genus: Ocotea Comments: In K the number was erroneously interpreted as 3913. Imaging technique: Illustration Original type data: Circa Tarapoto Peruviae orient. (Spruce n. 3918 !). (v. s. in hb. Mart.) License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17805968 Photo: Jens G. Rohwer
Title: Oreodaphne leucoxylon var. elongata Meisn. Accepted name: Ocotea leucoxylon (Sw.) Laness. Collector: Wright Collection Number: 477 Nomenklaturstatus: not accepted: heterotypic (taxonomic) synonym Family: Lauraceae Genus: Ocotea Imaging technique: Illustration Original type data: Cum praeced. [i. e., in ins. Antillis] (Ramon de la Sagra n. 235 ex parte, 664 ! Wright n. 477 !). License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/100388591 Photo: Jens G. Rohwer
Title: Oreodaphne lobbii Meisn. Accepted name: Ocotea lobbii (Meisn.) Rohwer Collector: Lobb Collection Number: 30 Nomenklaturstatus: not accepted: homotypic (nomenclatural) synonym Family: Lauraceae Genus: Ocotea Imaging technique: Illustration Original type data: In Brasiliâ merid. (Lobb n. 30 !). (v. s. in hb. Hook.) License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17804769 Photo: Jens G. Rohwer
Title: Oreodaphne lucida Meisn. Accepted name: Ocotea brachybotrya (Meisn.) Mez Collector: Gardner Collection Number: 118 = 811 Nomenklaturstatus: not accepted: heterotypic (taxonomic) synonym Family: Lauraceae Genus: Ocotea Imaging technique: Illustration Original type data: Circa Rio Janeiro (Gardn. n. 811 !). (v. s. in hb. Boiss. , Hook., etc.) License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17804474 Photo: Jens G. Rohwer
Title: Oreodaphne macrophylla Meisn. Accepted name: Ocotea magnilimba Kosterm. Collector: Riedel Collection Number: 773 Nomenklaturstatus: not accepted: homotypic (nomenclatural) synonym Family: Lauraceae Genus: Ocotea Comments: The combination Ocotea macrophylla (Meisn.) Mez (1889) is illegitimate because of O. macrophylla Kunth (1818). Imaging technique: Illustration Original type data: In Brasiliâ (Riedel n. 773 !). (v. s. in hb. Petrop.) License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17804624 Photo: Jens G. Rohwer
Title: Oreodaphne marginata Nees Accepted name: Ocotea cupularis (Lam.) Cordem. Collector: Commerson? Collection Number: s.n. Nomenklaturstatus: not accepted: heterotypic (taxonomic) synonym Family: Lauraceae Genus: Ocotea Imaging technique: Illustration Original type data: Patria Insula S. Mauritii. Vidi exemplum absque floribus, fructu immaturo, in Herb. Kunthiano. License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17804437 Photo: Jens G. Rohwer
Title: Oreodaphne marowynensis Miq. Accepted name: Ocotea leptobotra (Ruiz & Pav.) Mez Collector: Kappler Collection Number: 629 b.b. Nomenklaturstatus: not accepted: heterotypic (taxonomic) synonym Family: Lauraceae Genus: Ocotea Imaging technique: Illustration Original type data: Arbor floribus albis, ad flumen Marrowyne superius, m. Augusto florens, a Kapplero detecta (Hostm. et Kappl. n. 629. b. b. Nectandra revoluta a me perperam dicta). License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17804860 Photo: Jens G. Rohwer
Title: Oreodaphne martiana Nees Accepted name: Ocotea lancifolia (Schott) Mez Collector: Martius Collection Number: 1112 Nomenklaturstatus: not accepted: heterotypic (taxonomic) synonym Family: Lauraceae Genus: Ocotea Imaging technique: Illustration Original type data: Varietatem α. in Provincia Minarum Brasiliae; a Martius. License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17804169 Photo: Jens G. Rohwer
Title: Oreodaphne martiana var. latifolia Nees Accepted name: Ocotea lancifolia (Schott) Mez Collector: Sello Collection Number: 5735 Nomenklaturstatus: not accepted: heterotypic (taxonomic) synonym Family: Lauraceae Genus: Ocotea Imaging technique: Illustration Original type data: Varietatem β. loco non indicato; Sellow. License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17804169 Photo: Jens G. Rohwer
Title: Oreodaphne martiniana Nees Accepted name: Ocotea puberula (Rich.) Nees Collector: Martin Collection Number: s.n. Nomenklaturstatus: not accepted: heterotypic (taxonomic) synonym Family: Lauraceae Genus: Ocotea Comments: On the specimen in the Nees herbarium (GZU000254354) and annotated by Nees the locality is given as "Guiana Gallica", on the B specimen (B 10 0185479) likewise annotated by Nees as "Cajenna"; the cited locality "S. Domingo" is not mentioned. Imaging technique: Illustration Original type data: Laurus borbonia (Laurier rouge) var. γ. Lam. Enc. méth. III. p. 450. Patria Guiana Gallica, S. Domingo, (Martin). Vidi in Herb. Kunth. specimen Herb. Mus. Paris., a Martino adlatum. License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17804774 Photo: Jens G. Rohwer
Title: Oreodaphne martiniana var. dubia Meisn. Accepted name: Licaria vernicosa (Mez) Kosterm. Collector: Perrottet Collection Number: 75 Nomenklaturstatus: not accepted: heterotypic (taxonomic) synonym Family: Lauraceae Genus: Licaria Imaging technique: Illustration Original type data: In Guianâ (Perrottet n. 75 !). (v. s. in hb. DC.) License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/100549828 Photo: Jens G. Rohwer
Title: Oreodaphne maynensis Meisn. Accepted name: Ocotea gracilis (Meisn.) Mez Collector: Poeppig Collection Number: 2364 Nomenklaturstatus: not accepted: heterotypic (taxonomic) synonym Family: Lauraceae Genus: Ocotea Imaging technique: Illustration Original type data: In Brasil. prov. Maynas (Poeppig n. 2364 ! et addend. n. 41 !). (v. s. in hb. Berol., DC., etc.) License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17804260 Photo: Jens G. Rohwer
Title: Oreodaphne megaphylla Meisn. Accepted name: Ocotea megaphylla (Meisn.) Mez Collector: Riedel? Collection Number: 486? Nomenklaturstatus: not accepted: homotypic (nomenclatural) synonym Family: Lauraceae Genus: Ocotea Comments: The specimen in B does not bear the collector's number, but is clearly the same collection as the others. Imaging technique: Illustration Original type data: In Brasiliae prov. Rio Jan. (Riedel n. 486 ! ex parte). (v. s. in hb. Petrop.) License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17804773 Photo: Jens G. Rohwer
Title: Oreodaphne mexicana var. diminuta Meisn. Accepted name: Ocotea betazensis (Mez) van der Werff Collector: Jurgensen Collection Number: 575 Nomenklaturstatus: not accepted: homotypic (nomenclatural) synonym Family: Lauraceae Genus: Ocotea Comments: Mez (1889) based his new species Phoebe betazensis Mez on Oreodaphne mexicana var. diminuta Meisn. Imaging technique: Illustration Original type data: Cum α [i.e., in Cordillera, Nolasco, Oaxaca] (Jürgens. n. 575!). [For the species incl. all varieties:] (v. s. in hb. DC., Hook., etc.) License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/50086661 Photo: Jens G. Rohwer
Title: Oreodaphne mexicana var. longipes Meisn. Accepted name: Ocotea helicterifolia (Meisn.) Hemsl. Collector: Botteri Collection Number: 1018 Nomenklaturstatus: not accepted: heterotypic (taxonomic) synonym Family: Lauraceae Genus: Ocotea Comments: The name of the collector is [Matteo] Botteri, as it appears on a printed label in BM (BM000525907) and in Meissner's handwriting in NY (NY00355674). It is misspelt "Broteri" in K (K000602139, K000602144). On a specimen in P (P00128564) from the herbarium of E. Fournier, it is abbreviated as "MB." Imaging technique: Illustration Original type data: Circa Orizaba (Botteri n. 1018). License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/50086660 Photo: Jens G. Rohwer
Title: Oreodaphne microbotrys Meisn. Accepted name: Ocotea microbotrys (Meisn.) Mez Collector: Riedel Collection Number: 1307 Nomenklaturstatus: not accepted: homotypic (nomenclatural) synonym Family: Lauraceae Genus: Ocotea Comments: Most flowers of the type specimens are abnormal. Imaging technique: Illustration Original type data: In Brasiliâ (Riedel n. 1307 ! Lund n. 191). (v. s. in hb. Petrop. et DC.) License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17804776 Photo: Jens G. Rohwer
Title: Oreodaphne myriantha Meisn. Accepted name: Ocotea myriantha (Meisn.) Mez Collector: Spruce Collection Number: 3069 Nomenklaturstatus: not accepted: homotypic (nomenclatural) synonym Family: Lauraceae Genus: Ocotea Imaging technique: Illustration Original type data: In Brasil. bor. prope S. Carlos ad fl. rio Negro (Spruce n. 2069 !). (v. s. in h. DC., Hook., etc.) License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17804498 Photo: Jens G. Rohwer
Title: Oreodaphne myriantha var. reticulata Meisn. Accepted name: Ocotea myriantha (Meisn.) Mez Collector: Spruce Collection Number: 2522 Nomenklaturstatus: not accepted: heterotypic (taxonomic) synonym Family: Lauraceae Genus: Ocotea Imaging technique: Illustration Original type data: Prope Panurè ad rio Uaupès, Brasiliae bor. Spruce n. 2522 ! ( v. s. in h. Hook., Mart.) License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17804498 Photo: Jens G. Rohwer
Title: Oreodaphne nitidula Nees & Mart. Accepted name: Ocotea lancifolia (Schott) Mez Collector: Martius Collection Number: s.n. Nomenklaturstatus: not accepted: heterotypic (taxonomic) synonym Family: Lauraceae Genus: Ocotea Imaging technique: Illustration Original type data: Var. α in Provincia Minarum Generalium Brasilieae; a Martius. License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/100385615 Photo: Jens G. Rohwer
Title: Oreodaphne nutans Nees Accepted name: Ocotea nutans (Nees) Mez Collector: Martius Collection Number: s.n. Nomenklaturstatus: not accepted: homotypic (nomenclatural) synonym Family: Lauraceae Genus: Ocotea Imaging technique: Illustration Original type data: In campis Provinciae St. Pauli Brasiliae, Ianuario arborem femineam var. α modo defloratam invenit cl. Martius. License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17804721 Photo: Jens G. Rohwer
Title: Oreodaphne nutans var. sylvestris Nees Accepted name: Ocotea nutans (Nees) Mez Collector: Martius Collection Number: s.n. Nomenklaturstatus: not accepted Family: Lauraceae Genus: Ocotea Imaging technique: Illustration Original type data: Var. β in sylvis, Capoës dictis, ad Tapanhoacanga in iugo montium Serro frio Provinciae Minarum generalium, Maio in anthesi, (idem.) [i. e., Martius]. License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17804721 Photo: Jens G. Rohwer
Title: Oreodaphne oblongo-obovata Nees Accepted name: Ocotea cuneifolia (Ruiz & Pav.) Mez Collector: Ruiz Collection Number: s.n. Nomenklaturstatus: not accepted: heterotypic (taxonomic) synonym Family: Lauraceae Genus: Ocotea Imaging technique: Illustration Original type data: Laurus oblongo-obovata Ruiz Fl. Peruv. ed. in Herb. gen. Berol. Auf den peru'schen Andes in Wäldern. Ruiz. License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17805965