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: Damburneya rudis (C.K. Allen) Trofimov & Rohwer Accepted name: Damburneya rudis (C.K. Allen) Trofimov & Rohwer Collector: Tucker Collection Number: 1318 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/100450139 Photo: Jens G. Rohwer
Title: Damburneya salicifolia (Kunth) Trofimov & Rohwer Accepted name: Damburneya salicifolia (Kunth) Trofimov & Rohwer Collector: Hinton Collection Number: 3083 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 salicifolia (Kunth) Trofimov & Rohwer Accepted name: Damburneya salicifolia (Kunth) Trofimov & Rohwer Collector: Langlassé Collection Number: 250 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 salicifolia (Kunth) Trofimov & Rohwer Accepted name: Damburneya salicifolia (Kunth) Trofimov & Rohwer Collector: Tellez Collection Number: 1668 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 salicifolia (Kunth) Trofimov & Rohwer Accepted name: Damburneya salicifolia (Kunth) Trofimov & Rohwer Collector: Williams Collection Number: 42547 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 salicina (C.K. Allen) Trofimov & Rohwer Accepted name: Damburneya salicina (C.K. Allen) Trofimov & Rohwer Collector: Ton Collection Number: 3411 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/100450140 Photo: Jens G. Rohwer
Title: Damburneya salicina (C.K. Allen) Trofimov & Rohwer Accepted name: Damburneya salicina (C.K. Allen) Trofimov & Rohwer Collector: Zamora Collection Number: 1157 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/100450140 Photo: Jens G. Rohwer
Title: Damburneya smithii (C.K. Allen) Trofimov & Rohwer Accepted name: Damburneya smithii (C.K. Allen) Trofimov & Rohwer Collector: Carvajal Collection Number: 208 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/100450141 Photo: Jens G. Rohwer
Title: Damburneya smithii (C.K. Allen) Trofimov & Rohwer Accepted name: Damburneya smithii (C.K. Allen) Trofimov & Rohwer Collector: Haber Collection Number: 318 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/100450141 Photo: Jens G. Rohwer
Title: Damburneya smithii (C.K. Allen) Trofimov & Rohwer Accepted name: Damburneya smithii (C.K. Allen) Trofimov & Rohwer Collector: Wheelwright Collection Number: 80C 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/100450141 Photo: Jens G. Rohwer
Title: Damburneya umbrosa (Kunth) Trofimov Accepted name: Damburneya umbrosa (Kunth) Trofimov Collector: Allen Collection Number: 3534 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/100450142 Photo: Jens G. Rohwer
Title: Damburneya umbrosa (Kunth) Trofimov Accepted name: Damburneya umbrosa (Kunth) Trofimov Collector: Stern Collection Number: 186 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/100450142 Photo: Jens G. Rohwer
Title: Damburneya umbrosa (Kunth) Trofimov Accepted name: Damburneya umbrosa (Kunth) Trofimov Collector: Wilbur Collection Number: 20133 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/100450142 Photo: Jens G. Rohwer
Title: Beilschmiedia spec.? Larsen 43345 Accepted name: Beilschmiedia Nees? Collector: Larsen Collection Number: 43345 Nomenklaturstatus: accepted Family: Lauraceae Genus: Beilschmiedia Comments: Determination uncertain; might be Dehaasia. Imaging technique: Illustration License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/40025992 Photo: Jens G. Rohwer
Title: Beilschmiedia longipedicellata Merr. Accepted name: Dehaasia membranacea Kosterm. Collector: Elmer Collection Number: 20875 Nomenklaturstatus: not accepted: homonym (illegitimate) Family: Lauraceae Genus: Beilschmiedia Comments: Paratype Elmer 20875 drawing of floral details Non B. longipedicellata Ridley (1926). Imaging technique: Illustration Original type data: Elmer 20782 (type), 20875, near Tawao. License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17802245 Photo: Jens G. Rohwer
Title: Dendrodaphne macrophylla Beurl. Accepted name: Mespilodaphne macrophylla (Beurl.) Trofimov Collector: Billberg Collection Number: s.n. Nomenklaturstatus: accepted: homotypic (nomenclatural) synonym Family: Lauraceae Genus: Mespilodaphne Comments: Floral details of holotype Billberg s.n. (S) Based on Dendrodaphne macrophylla Beurl. The epithet macrophylla was not available in Ocotea because of O. macrophylla Kunth. Imaging technique: Illustration Original type data: Inter plantas portobellenses Billbergianas occurrit Laurinea com inscriptione »in silvis». License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17804312 Photo: Jens G. Rohwer
Title: Dicypellium caryophyllaceum (Mart.) Nees Accepted name: Dicypellium caryophyllaceum (Mart.) Nees Collector: Snethlage Collection Number: MG 10087 Nomenklaturstatus: accepted Family: Lauraceae Genus: Dicypellium Comments: Based on Persea caryophyllacea Mart. in Buchner, though not explicitly cited in this publication (but in Syst. Laur. 344. 1836). Nees spelt the epithet "caryophyllatum", but this needs to be corrected in accordance with the original spelling. Imaging technique: Illustration License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17804301 Photo: Jens G. Rohwer
Title: Dicypellium caryophyllaceum (Mart.) Nees Accepted name: Dicypellium caryophyllaceum (Mart.) Nees Collector: Martius Collection Number: 213 Nomenklaturstatus: accepted Family: Lauraceae Genus: Dicypellium Comments: Possibly an isotype of Persea caryophyllacea Mart.? Based on Persea caryophyllacea Mart. in Buchner, though not explicitly cited in this publication (but in Syst. Laur. 344. 1836). Nees spelt the epithet "caryophyllatum", but this needs to be corrected in accordance with the original spelling. Imaging technique: Illustration Original type data: [no type indicated]. License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17804301 Photo: Jens G. Rohwer
Title: Dicypellium manausense W.A. Rodrigues Accepted name: Dicypellium manausense W.A. Rodrigues Collector: Rodrigues Collection Number: 5546 Nomenklaturstatus: accepted Family: Lauraceae Genus: Dicypellium Comments: Flower of isotype Rodrigues 5546 (HBG) Imaging technique: Illustration Original type data: Habitat: Brasil, Amazonas, Reserva Florestal Ducke, margem da estrada. Árvore de 19m. de altura por 10cm. de diâmetro de fuste. Flôres brancas; frutos roxo-escuros com cúpula vermelha. Nome Vulgar: Louro preto. Ocasional na mata de terra firme, solo argiloso, amarelo. William A. Rodrigues, 5546 em 28/XI/1963, madeira INPA n.° X.2044. HOLOTYPUS — INPA n.° 14219. PARATYPUS — INPA n.° 17040, mesma localidade, Quadra XIV, arvoreta de 4m de altura, com frutos roxo-escuros, pedúnculo e cúpula vermelhos; mata de terra firme, solo argiloso. W. A. Rodrigues & D. Coêlho, 7735 em 29/IV/1966. License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17803648 Photo: Jens G. Rohwer
Title: Dodecadenia grandiflora Nees Accepted name: Dodecadenia grandiflora Nees Collector: Wallich Collection Number: 2544 A et B Nomenklaturstatus: accepted Family: Lauraceae Genus: Dodecadenia Comments: Flower details of isotype Wallich 2544 A et B Imaging technique: Illustration Original type data: Tetranthera grandiflora Wall. Cat. n. 2544. Habitat in Napalia (Wallich a. 1821); in Kamaon R. B. Floret Aprili. License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17805431 Photo: Jens G. Rohwer
Title: Endiandra grandifolia Teschner Accepted name: Endiandra grandifolia Teschner Collector: Clemens Collection Number: 1600 Nomenklaturstatus: accepted Family: Lauraceae Genus: Endiandra Comments: Drawing of floral details Imaging technique: Illustration License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17806601 Photo: Jens G. Rohwer
Title: Endiandra insignis (F.M. Bailey) F.M. Bailey Accepted name: Endiandra insignis (F.M. Bailey) F.M. Bailey Collector: Hyland Collection Number: 12472 Nomenklaturstatus: accepted Family: Lauraceae Genus: Endiandra Comments: Drawing of floral details Imaging technique: Illustration License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/50182776 Photo: Jens G. Rohwer
Title: Endiandra longipedicellata C. White & W.D. Francis Accepted name: Endiandra longipedicellata C. White & W.D. Francis Collector: Gray Collection Number: 4180 Nomenklaturstatus: accepted Family: Lauraceae Genus: Endiandra Comments: Drawing of floral details Imaging technique: Illustration License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/50181536 Photo: Jens G. Rohwer
Title: Endiandra polyneura Schltr. Accepted name: Endiandra polyneura Schltr. Collector: Schlechter Collection Number: 15459 Nomenklaturstatus: accepted Family: Lauraceae Genus: Endiandra Comments: Syntype Schlechter 15459; drawing of floral details Imaging technique: Illustration Original type data: Nord-Bezirk: in den Wäldern der Berge bei Ou Hinna, ca. 900 m ü. M. — n. 15693, blühend im Januar 1903; in den Wäldern der Berge bei Oubatche, ca. 1000 m ü. M. — n. 15459, blühend im Dezember 1902. License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17805451