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: Mespilodaphne pulchella var. elliptica Meisn. Accepted name: Ocotea pulchella (Nees) Mez Collector: Martius Collection Number: 117 Nomenklaturstatus: not accepted: heterotypic (taxonomic) synonym Family: Lauraceae Genus: Ocotea Comments: The colletion Schott 4450 has not been located so far, nor Helmrinhen [ex Meissner] or Helmreichen [ex Mez] 13. Imaging technique: Illustration Original type data: [under the species] In Brasiliâ trop. et merid. [under the variety] (Schott n. 4430 ! 4450 ! Gaudich. n. 300 ! Mart. hb. fl. Bras. n. 117 ex parte, Fox Strangw. n. 286 ! Helmrinhen n. 13 !). License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17804114 Photo: Jens G. Rohwer
Title: Mespilodaphne racemosa Danguy Accepted name: Ocotea racemosa (Danguy) Kosterm. Collector: Thouvenot Collection Number: 148 Nomenklaturstatus: not accepted: homotypic (nomenclatural) synonym Family: Lauraceae Genus: Ocotea Imaging technique: Illustration Original type data: M. Thouvenot a récolté deux séries d'échantillons de ce Mespilodaphne; les uns, n° 140, portent le nom de Varongy-mena; les autres, n° 148, Varongy-mavo License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17804002 Photo: Jens G. Rohwer
Title: Mespilodaphne riedelii Meisn. Accepted name: Ocotea dispersa (Nees) Mez Collector: Riedel Collection Number: 484 Nomenklaturstatus: not accepted: heterotypic (taxonomic) synonym Family: Lauraceae Genus: Ocotea Imaging technique: Illustration Original type data: In Brasiliâ (Riedel n. 484 !). (v. s. sine fr. in h. petrop.) License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17804623 Photo: Jens G. Rohwer
Title: Mespilodaphne sassafras Meisn. Accepted name: Ocotea sassafras (Meisn.) Mez Collector: Peckolt Collection Number: 6 Nomenklaturstatus: not accepted: homotypic (nomenclatural) synonym Family: Lauraceae Genus: Ocotea Imaging technique: Illustration Original type data: In Brasiliâ circa Cantagallo, ubi Cannella Sassafras vocatur (Peckolt n. 6 !). (v. s. in hb. Mart.) License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17804771 Photo: Jens G. Rohwer
Title: Mespilodaphne sprucei Meisn. Accepted name: Ocotea argentata Mez Collector: Lund Collection Number: 280 Nomenklaturstatus: not accepted: heterotypic (taxonomic) synonym Family: Lauraceae Genus: Ocotea Comments: Mez (1889) excluded all syntypes except Spruce 2149 and thus effectively lectotypified Mespilodaphne sprucei in the sense of a different species (Ocotea sprucei (Meisn.) Mez). Lund 280 is also a syntype of Ocotea argentea Mez. Imaging technique: Illustration Original type data: In Brasil. bor. ad Rio Negro (Spruce n. 2149 !) et circa Rio Jan. (Riedel ! Lund n. 280). (v. s. in hb. DC., Mart., Petrop., etc.) License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17804504 Photo: Jens G. Rohwer
Title: Mespilodaphne sprucei Meisn. Accepted name: Ocotea argentata Mez Collector: Riedel Collection Number: s.n. Nomenklaturstatus: not accepted: heterotypic (taxonomic) synonym Family: Lauraceae Genus: Ocotea Comments: Mez (1889) excluded all syntypes except Spruce 2149 and thus effectively lectotypified Mespilodaphne sprucei in the sense of a different species (Ocotea sprucei (Meisn.) Mez). Imaging technique: Illustration Original type data: In Brasil. bor. ad Rio Negro (Spruce n. 2149 !) et circa Rio Jan. (Riedel ! Lund n. 280). (v. s. in hb. DC., Mart., Petrop., etc.) License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17804504 Photo: Jens G. Rohwer
Title: Mespilodaphne sprucei Meisn. Accepted name: Ocotea sprucei (Meisn.) Mez Collector: Spruce Collection Number: 2149 Nomenklaturstatus: not accepted: homotypic (nomenclatural) synonym Family: Lauraceae Genus: Ocotea Comments: Mez (1889) excluded all syntypes except Spruce 2149 and thus effectively lectotypified Mespilodaphne sprucei in the sense of this collection. Imaging technique: Illustration Original type data: In Brasil. bor. ad Rio Negro (Spruce n. 2149 !) et circa Rio Jan. (Riedel ! Lund n. 280). (v. s. in hb. DC., Mart., Petrop., etc.) License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17804504 Photo: Jens G. Rohwer
Title: Mespilodaphne thouvenotii Danguy Accepted name: Ocotea thouvenotii (Danguy) Kosterm. Collector: Thouvenot Collection Number: 33 Nomenklaturstatus: not accepted: homotypic (nomenclatural) synonym Family: Lauraceae Genus: Ocotea Imaging technique: Illustration Original type data: [Thouvenot] N° 33. Varongy à grandes feuilles. License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17803997 Photo: Jens G. Rohwer
Title: Mespilodaphne vaginans Meisn. Accepted name: Ocotea vaginans (Meisn.) Mez Collector: Fendler Collection Number: 1098 Nomenklaturstatus: not accepted: homotypic (nomenclatural) synonym Family: Lauraceae Genus: Ocotea Imaging technique: Illustration Original type data: In coloniâ Tovar, Venezuelae (Fendler n. 1098 !). (v. s. in hb. DC. et Boiss.) License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17804224 Photo: Jens G. Rohwer
Title: Mespilodaphne montana Meisn. Accepted name: Ocotea montana (Meisn.) Mez Collector: Riedel Collection Number: s.n. Nomenklaturstatus: not accepted: homotypic (nomenclatural) synonym Family: Lauraceae Genus: Ocotea Comments: Drawing of floral details, from Riedel s.n. (B), isotype of Mespilodaphne montana Meisn. Imaging technique: Illustration Original type data: In Brasiliâ circa Bahia et Ilheos (Riedel). (v. s. in hb. Petrop.) License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17804777 Photo: Jens G. Rohwer
Title: Mespilodaphne moschata Meisn. Accepted name: Ocotea moschata (Meisn.) Mez Collector: Ruiz Collection Number: s.n. Nomenklaturstatus: not accepted: homotypic (nomenclatural) synonym Family: Lauraceae Genus: Ocotea Comments: Drawing of floral details, from Ruiz & Pavón s.n. (G), holotype of Mespilodaphne moschata Meisn. Imaging technique: Illustration Original type data: In Novâ Hispaniâ. et Porto-Rico (Pavon!). Laurus moschata vulgo Nuez moscada, Pav.! In sched. (v.s. in h. Boiss.) License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17804935 Photo: Jens G. Rohwer
Title: Nectandra acuminata (Nees & Mart. ex Nees) J.F. Macbr. Accepted name: Nectandra acuminata (Nees & Mart. ex Nees) J.F. Macbr. Collector: Williams Collection Number: 4015 Nomenklaturstatus: accepted Family: Lauraceae Genus: Nectandra Imaging technique: Illustration License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17802352 Photo: Jens G. Rohwer
Title: Nectandra acutifolia (Ruiz & Pav.) Mez Accepted name: Nectandra acutifolia (Ruiz & Pav.) Mez Collector: Bang Collection Number: 2901 Nomenklaturstatus: accepted Family: Lauraceae Genus: Nectandra Imaging technique: Illustration License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17800057 Photo: Jens G. Rohwer
Title: Nectandra acutifolia (Ruiz & Pav.) Mez Accepted name: Nectandra acutifolia (Ruiz & Pav.) Mez Collector: Buchtien Collection Number: 735 Nomenklaturstatus: accepted Family: Lauraceae Genus: Nectandra Imaging technique: Illustration License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17800057 Photo: Jens G. Rohwer
Title: Nectandra acutifolia (Ruiz & Pav.) Mez Accepted name: Nectandra acutifolia (Ruiz & Pav.) Mez Collector: Cogollo Collection Number: 1252 Nomenklaturstatus: accepted Family: Lauraceae Genus: Nectandra Imaging technique: Illustration License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17800057 Photo: Jens G. Rohwer
Title: Nectandra acutifolia (Ruiz & Pav.) Mez Accepted name: Nectandra acutifolia (Ruiz & Pav.) Mez Collector: Cuatrecasas Collection Number: 14178 Nomenklaturstatus: accepted Family: Lauraceae Genus: Nectandra Imaging technique: Illustration License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17800057 Photo: Jens G. Rohwer
Title: Nectandra acutifolia (Ruiz & Pav.) Mez Accepted name: Nectandra acutifolia (Ruiz & Pav.) Mez Collector: Cuatrecasas Collection Number: 16808 Nomenklaturstatus: accepted Family: Lauraceae Genus: Nectandra Imaging technique: Illustration License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17800057 Photo: Jens G. Rohwer
Title: Nectandra acutifolia (Ruiz & Pav.) Mez Accepted name: Nectandra acutifolia (Ruiz & Pav.) Mez Collector: Cuatrecasas Collection Number: 7569 Nomenklaturstatus: accepted Family: Lauraceae Genus: Nectandra Imaging technique: Illustration License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17800057 Photo: Jens G. Rohwer
Title: Nectandra acutifolia (Ruiz & Pav.) Mez Accepted name: Nectandra acutifolia (Ruiz & Pav.) Mez Collector: Fosberg Collection Number: 19433 Nomenklaturstatus: accepted Family: Lauraceae Genus: Nectandra Imaging technique: Illustration License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17800057 Photo: Jens G. Rohwer
Title: Nectandra acutifolia (Ruiz & Pav.) Mez Accepted name: Nectandra acutifolia (Ruiz & Pav.) Mez Collector: Gentry Collection Number: 23946 Nomenklaturstatus: accepted Family: Lauraceae Genus: Nectandra Imaging technique: Illustration License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17800057 Photo: Jens G. Rohwer
Title: Nectandra acutifolia (Ruiz & Pav.) Mez Accepted name: Nectandra acutifolia (Ruiz & Pav.) Mez Collector: Jelski Collection Number: 174 Nomenklaturstatus: accepted Family: Lauraceae Genus: Nectandra Imaging technique: Illustration License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17800057 Photo: Jens G. Rohwer
Title: Nectandra acutifolia (Ruiz & Pav.) Mez Accepted name: Nectandra acutifolia (Ruiz & Pav.) Mez Collector: Jelski Collection Number: 188 Nomenklaturstatus: accepted Family: Lauraceae Genus: Nectandra Imaging technique: Illustration License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17800057 Photo: Jens G. Rohwer
Title: Nectandra acutifolia (Ruiz & Pav.) Mez Accepted name: Nectandra acutifolia (Ruiz & Pav.) Mez Collector: Lawrence Collection Number: 471 Nomenklaturstatus: accepted Family: Lauraceae Genus: Nectandra Imaging technique: Illustration License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17800057 Photo: Jens G. Rohwer
Title: Nectandra acutifolia (Ruiz & Pav.) Mez Accepted name: Nectandra acutifolia (Ruiz & Pav.) Mez Collector: Lehmann Collection Number: 7528 Nomenklaturstatus: accepted Family: Lauraceae Genus: Nectandra Imaging technique: Illustration License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17800057