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: Nectandra spumea Kubitzki Accepted name: Ocotea esmeraldana Moldenke Collector: Kubitzki Collection Number: 79-231 Nomenklaturstatus: not accepted: heterotypic (taxonomic) synonym Family: Lauraceae Genus: Ocotea Imaging technique: Illustration Original type data: Type: Brazil. Amazonas. Upper rio Negro region, rio Tea, ca. 40 km above mouth; tree in flooded blackwater forest, ca. 3 m high, trunk 8 cm diam., crown very broad: K. Kubitzki, H. H. Poppendieck & C. Calderon 79-231, fl, y fr (INPA; isot.: HBG, IAN, M, RB, US). License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17804595 Photo: Jens G. Rohwer
Title: Nectandra squarrosa Nees Accepted name: Ocotea squarrosa (Nees) Mez Collector: Neuwied Collection Number: s.n. Nomenklaturstatus: not accepted: heterotypic (taxonomic) synonym Family: Lauraceae Genus: Ocotea Imaging technique: Illustration Original type data: Ocotea squarrosa Mart. in Herb. prop. In arenosis ad Cabo frio cum floribus fructuque legit Maximilianus Princeps Wiedensis. License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17801132 Photo: Jens G. Rohwer
Title: Nectandra staminea Griseb. Accepted name: Ocotea staminea (Griseb.) Mez Collector: McNab Collection Number: s.n. Nomenklaturstatus: not accepted: homotypic (nomenclatural) synonym Family: Lauraceae Genus: Ocotea Imaging technique: Illustration Original type data: Hab. Jamaica !, Pd., M'Nab, Al., in the western and northern forests, in the interior districts of Westmoreland and S. Anna. License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17801133 Photo: Jens G. Rohwer
Title: Nectandra standleyi C.K. Allen Accepted name: Nectandra membranacea (Sw.) Griseb. Collector: Brenes Collection Number: 4061 Nomenklaturstatus: not accepted: heterotypic (taxonomic) synonym Family: Lauraceae Genus: Nectandra Imaging technique: Illustration Original type data: Costa Rica: Alajuela: San Luis de Zarcero, A. Smith 164 (fl., Ch); region of Zarcero, A. Smith A.243 (fl., A, Ch, NY); (La Cidra) de San Ramón, Brenes 3850 (3) (fr., Ch.); without precise locality, presumably San Ramón, Brenes 4061 (fl., type, Ch); Piedades near San Ramón, Brenes 4344 (fl., Ch); hills of San Pedro de San Ramón, Brenes 4780 (565), 4794 (579), 5019 (175) (fl., Ch), 5443 (36) (fr., Ch); Cerro de Palma de San Ramón (El Socoro), Brenes 5714, 5733, 5831 (423), 16833 (fl., Ch). San José: La Caja, Valerio 1326 (fl., Ch). Cartago: El Muñeco, on Río Navarro, Standley & Torres 50908 (fr. Ch). Limón(?): La Concepcion, Llanuras de Santa Clara, J. D. Smith 6757 (fr., GH). Panama: Bocal del Toro: Cricamola, near Almirante, G. P. Cooper 488 (fl., Ch, NY); vicinity of Chiriquí Lagoon, Big Bight, von Wedel 2884; Isla Colon, von Wedel 2967 (fl., A). License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17802815 Photo: Jens G. Rohwer
Title: Nectandra steyermarkiana C.K. Allen Accepted name: Nectandra baccans (Meisn.) Mez Collector: Steyermark Collection Number: 7 Nomenklaturstatus: not accepted: heterotypic (taxonomic) synonym Family: Lauraceae Genus: Nectandra Imaging technique: Illustration Original type data: Type. Tree 45 feet high, bark gray, bark and twigs with unpleasant odor, young branchlets and buds with close fulvous-brown tomentum, leaves shining, dark green above, pale green beneath, midrib pale green yellowish throughout, flowers cream, roadisde enroute to Colonia Tovar, Distrito Federal, Venezuela,alt ± 1800 m, 12 June 1962, J. A. Steyermark & C. K. Allen 7 (holotype, fl. NY; isotype VEN). VENEZUELA. Distrito Federal: enroute to Colonia Tovar, Steyermark & Allen 8 (fl., fr. NY, VEN), 11 (st. NY, VEN); arbusto frondosa de montañuelos de la carretera Catia-El Junquito, F. Tamayo 2565 (fl. US); Los Venados, camino de ronda hacia Los Flores, E. Delgado 428 (fl. US); Aragua: San Pedro de Los Altos C. M. Ravago 22 (fl. NY); Parque Nacional Henri Pittier, selvas de La Mesa, H. Pittier & M. Nakichenovich 15450 (fl. GH, US, VEN), alrededores de Guamitas, Pittier 15528 (fl. US, VEN); rich forest on southwest-facing side of mountain, bordering quebrada above Guamitas, along trail between Guamitas and La Mesa, Julian A. Steyermark 89726 (fl. NY). License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17803451 Photo: Jens G. Rohwer
Title: Nectandra superba A.C. Sm. Accepted name: Rhodostemonodaphne dioica (Mez) Rohwer Collector: Krukoff Collection Number: 5757 Nomenklaturstatus: not accepted: heterotypic (taxonomic) synonym Family: Lauraceae Genus: Rhodostemonodaphne Imaging technique: Illustration Original type data: Type, Krukoff 5757, collected Sept. 3, 1933, on "terra firma" near mouth of Rio Macauhan (tributary of Rio Yaco), basin of Rio Purus, Territory of Acre. License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17802358 Photo: Jens G. Rohwer
Title: Nectandra surinamensis Mez Accepted name: Nectandra cissiflora Nees Collector: Kappler Collection Number: 2076 Nomenklaturstatus: not accepted: homonym (illegitimate) Family: Lauraceae Genus: Nectandra Comments: Nectandra surinamensis Mez (1889) is a later homonym of N. surinamensis Rottb. ex Bercht. & J. Presl (1825) Imaging technique: Illustration Original type data: Hab. in Guyana batava ad ripas fluminis Siparawini: Kappler n. 2076; anglica ad flumen Cabalebo: Thurn; et gallica, loco non indicato: Mélinon n. 561. Floret Septembri. (V. s. in herb. Goetting., Kew., Paris., Vindob.) License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17800089 Photo: Jens G. Rohwer
Title: Nectandra tabascensis Lundell Accepted name: Damburneya martinicensis (Mez) Trofimov Collector: Matuda Collection Number: 3299 Nomenklaturstatus: not accepted: heterotypic (taxonomic) synonym Family: Lauraceae Genus: Damburneya Imaging technique: Illustration Original type data: Mexico: Tabasco, La Palma on the San Pedro de Martir River near the Petén border, June 1–6, 1939, Eizi Matuda 3299 (type in the University of Michigan Herbarium). License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17802816 Photo: Jens G. Rohwer
Title: Nectandra tessmannii O.C. Schmidt Accepted name: Nectandra hihua (Ruiz & Pav.) Rohwer Collector: Tessmann Collection Number: 3942 Nomenklaturstatus: not accepted: heterotypic (taxonomic) synonym Family: Lauraceae Genus: Nectandra Imaging technique: Illustration Original type data: Ostperu: Oberer Marañon, Mündung des Santiago, 160 m, befluteter Hochwald am Rande eines Baches (blühend 2. September 1924 — G. Tessmann n. 3942). License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17802267 Photo: Jens G. Rohwer
Title: Nectandra trianae Mez Accepted name: Pleurothyrium trianae (Mez) Rohwer Collector: Triana Collection Number: 1037 Nomenklaturstatus: not accepted: homotypic (nomenclatural) synonym Family: Lauraceae Genus: Pleurothyrium Imaging technique: Illustration Original type data: Hab. In Nova Granata, loco non indicato: Triana n. 1037. (V. s. in herb. Paris.) License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17800090 Photo: Jens G. Rohwer
Title: Nectandra turbacensis var. mexicana Meisn. Accepted name: Nectandra turbacensis (Kunth) Nees Collector: Linden Collection Number: 16 Nomenklaturstatus: not accepted: heterotypic (taxonomic) synonym Family: Lauraceae Genus: Nectandra Imaging technique: Illustration Original type data: In Mexici prov. Vera Cruz (Linden n. 16 ! Galeotti n. 7101 !). (v. s. in hb. Hook.) License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17803850 Photo: Jens G. Rohwer
Title: Nectandra turbacensis var. truxillensis Meisn. Accepted name: Nectandra truxillensis (Meisn.) Mez Collector: Funcke Collection Number: 803 Nomenklaturstatus: not accepted: homotypic (nomenclatural) synonym Family: Lauraceae Genus: Nectandra Imaging technique: Illustration Original type data: In Venezuelae, prov. Truxillo (Funck et Schlim, n. 803 !). (v. s. in hb. DC.) License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17803852 Photo: Jens G. Rohwer
Title: Nectandra urophylla Meisn. Accepted name: Nectandra amazonum Nees Collector: Spruce Collection Number: 222 Nomenklaturstatus: not accepted: heterotypic (taxonomic) synonym Family: Lauraceae Genus: Nectandra Imaging technique: Illustration Original type data: In Brasiliae prov. Parâ (Spruce ! n. 222 et sub Nect. 2). (v. s.) License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17801138 Photo: Jens G. Rohwer
Title: Nectandra vaga var. major Meisn. Accepted name: Nectandra globosa (Aubl.) Mez Collector: Schomburgk Collection Number: 896 Nomenklaturstatus: not accepted: heterotypic (taxonomic) synonym Family: Lauraceae Genus: Nectandra Imaging technique: Illustration Original type data: In Guianâ (Schomb. n. 896 ! Sagot n. 811 ! ex parte Splitg. n. 999 !). (v. s.) License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17803853 Photo: Jens G. Rohwer
Title: Nectandra vaga var. sprucei Meisn. Accepted name: Nectandra globosa (Aubl.) Mez Collector: Spruce Collection Number: 3677 Nomenklaturstatus: not accepted: heterotypic (taxonomic) synonym Family: Lauraceae Genus: Nectandra Imaging technique: Illustration Original type data: Ad Rio Negro, Brasiliae bor. (Spruce !). N. leucantha Benth.! in pl. Spruce n. 3677 (non Nees). License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17803854 Photo: Jens G. Rohwer
Title: Nectandra vaga var. vulgaris Meisn. Accepted name: Nectandra globosa (Aubl.) Mez Collector: Wullschlägel Collection Number: 455 Nomenklaturstatus: not accepted: superfluous renaming (illegitimate) Family: Lauraceae Genus: Nectandra Comments: This is the typical variety, should be var. vaga. Typified by the type of the species: Hostmann & Kappler 235 (G), designated by Rohwer (1993) Imaging technique: Illustration Original type data: In Guianâ Angl., Bat. et Gall. (Schomb. n. 895 ! 896! (ex parte), 1347 ! 1452 ! Hostm. et Kappl. n. 235 ! 1827 ! Hancock n. 280 ! Splitgerber n. 542 ! Wullschl. n. 455 ! 1548 ! 1550 ! Sagot n. 811 ex parte. Focke !) et Brasiliae prov. Bahia (Blanch. n. 1544 ! 1863 ! Gaudich. n. 293 !). (v. s.) License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/50183262 Photo: Jens G. Rohwer
Title: Nectandra velutina Mez Accepted name: Rhodostemonodaphne velutina (Mez) Madriñán Collector: Triana Collection Number: 1034 Nomenklaturstatus: not accepted: homotypic (nomenclatural) synonym Family: Lauraceae Genus: Rhodostemonodaphne Imaging technique: Illustration Original type data: Hab. in Nova Granata, loco non indicato: Triana n. 1034. (V. s. in herb. Paris.) License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17800094 Photo: Jens G. Rohwer
Title: Nectandra venosissima Lundell Accepted name: Damburneya ambigens (S.F. Blake) Trofimov Collector: Contreras Collection Number: 6915 Nomenklaturstatus: not accepted: heterotypic (taxonomic) synonym Family: Lauraceae Genus: Damburneya Imaging technique: Illustration Original type data: Guatemala: Dept. Peten, La Cumbre, west of km. 145 of Cadenas Road, May 15, 1967, Elias Contreras 6915 (LL, type), tree, 90 ft. high, 30 in. diam., "laurel." License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17803453 Photo: Jens G. Rohwer
Title: Nectandra venulosa Meisn. Accepted name: Nectandra venulosa Meisn. Collector: Gardner Collection Number: 5149 Nomenklaturstatus: accepted Family: Lauraceae Genus: Nectandra Imaging technique: Illustration Original type data: In Brasiliae prov. Minas Geraës (Gardn. n. 5149 ! 5161 !). (v. s.) License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17801140 Photo: Jens G. Rohwer
Title: Nectandra viburnoides Meisn. Accepted name: Nectandra viburnoides Meisn. Collector: Spruce Collection Number: 1679 Nomenklaturstatus: accepted Family: Lauraceae Genus: Nectandra Imaging technique: Illustration Original type data: In Brasiliâ bor. ad fl. Amazonum et rio Negro (Spruce n. 1679 !). (v. s.) License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17801141 Photo: Jens G. Rohwer
Title: Nectandra virgultosa Nees Accepted name: Ocotea virgultosa (Nees) Mez Collector: Martius Collection Number: s.n. Nomenklaturstatus: not accepted: homotypic (nomenclatural) synonym Family: Lauraceae Genus: Ocotea Comments: Ocotea virgultosa Mart. ex Nees was mentioned by Nees as herbarium name only. Imaging technique: Illustration Original type data: Laurus s. Ocotea virgultosa Mart. in Herb. Bras. Monac. In sylvulis udis depressis, Capoès dictis, Provinciae Minarum generalium, cum cupulis et frutu maturo, (de Martius.) License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17801143 Photo: Jens G. Rohwer
Title: Nectandra warmingii Meisn. Accepted name: Nectandra warmingii Meisn. Collector: Warming Collection Number: 718 Nomenklaturstatus: accepted Family: Lauraceae Genus: Nectandra Imaging technique: Illustration Original type data: Hab. in sylvis circa Lagoa Santa, die 16 Jun. 1865 legit Warming. License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17801144 Photo: Jens G. Rohwer
Title: Nectandra willdenoviana var. latifolia Meisn. Accepted name: Damburneya coriacea (Sw.) Trofimov & Rohwer Collector: Sieber Collection Number: fl. Martin. 312 Nomenklaturstatus: not accepted: heterotypic (taxonomic) synonym Family: Lauraceae Genus: Damburneya Imaging technique: Illustration Original type data: In Martinicâ et Portorico (Sieber Fl. Martin. n. 312 ! Pav.!). Laurus nervosa Pavon ! in hb. Boiss. (v. s.) License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17803857 Photo: Jens G. Rohwer
Title: Nectandra williamsii O.C. Schmidt Accepted name: Nectandra membranacea (Sw.) Griseb. Collector: Williams Collection Number: 6001 Nomenklaturstatus: not accepted: heterotypic (taxonomic) synonym Family: Lauraceae Genus: Nectandra Imaging technique: Illustration Original type data: Peru: Dept. St. Martin, Tarapoto, 750 m, Dezember 1929 – Llewelyn Williams n. 5950 (Herb. Field. Mus. Chicago)! n. 6001 (Typus, Herb. Berlin! Herb. Field Mus. Chicago!). License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17802360