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Nectandra gracilis Rohwer
Title: Nectandra gracilis Rohwer Accepted name: Nectandra gracilis Rohwer Collector: Gentry Collection Number: 28939 Nomenklaturstatus: accepted Family: Lauraceae Genus: Nectandra Imaging technique: Illustration Original type data:
Type. Peru. Loreto: Prov. Maynas, Mishana, Río Nanay, halfway between Iquitos and Santa Maria de Nanay, 130 m, 22 Jul 1980 (fl), A. Gentry et al. 28939 (holotype, MO; isotype, HBG). Specimens examined. ECUADOR. Napo: Jatun Sacha Biological Station, 8 km E of Misahuallí, downstream on Río Napo, right bank, 1°08'S, 77°30'W, 450 m, 2–5 Sep 1988 (fl), Palacios 2855 (HBG, MO); ibid., 7–16 Sep 1988 (fl), Palacios 2938 (HBG, MO). Pastaza: Sarayacu on the Río Bobonaza, 14 Aug 1979 (fl), Lugo 5414 (GB); Sarayaquillo, ca. 5 km N of Sarayacu, 16 Aug 1979 (fl), Lugo 5474 (GB); Palta Playa, 15 km N of Sarayacu, 23 Aug 1979 (fl), Lugo 5599 (GB); Teresa Mama on the Río Bobonaza, ca. 35 km SE of Sarayacu, 26 Aug 1979 (fl), Lugo 5691 (GB); 12 km N of Arajuno, 9 Sep 1979 (fl), Lugo 5806 (GB). PERU. Loreto: Río Itaya, ca. 5 km above Iquitos, 6 Aug 1972 (fl), Croat 18805 (HBG, MO); Iquitos, 30 Jul 1906 (fl), Ducke s.n. (MG 7533, U, RB 20110); Prov. Maynas, Mishana, Río Nanay, halfway between Iquitos and Santa Maria de Nanay, trail to Campamento 1, 180 m, 30 May 1978 (st), A. Gentry et al. 22426 (MO); ibid., 130 m, 22 Jul 1980 (fl), A. Gentry et al. 28939 (type, HBG, MO); Río Nanay between mouth of Río Momon and Bellavista, 110 m, 17 Jun 1970 (fl), McDaniel 2461 (US); ibid., McDaniel 13569 (F, MO); Iquitos, Buena Suerte, Río Itaya, 4°10'S, 73°30'W, 130 m, 15 Nov 1986 (fr imm), R. Vásquez & Jaramillo 8372 (HBG, MO); Iquitos, Tessmann 3588 (NY); Caballococha on the Amazon River, 5 Aug 1929 (fl), Ll. Williams 2088 (F, NY, US). License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17806047
Type. Peru. Loreto: Prov. Maynas, Mishana, Río Nanay, halfway between Iquitos and Santa Maria de Nanay, 130 m, 22 Jul 1980 (fl), A. Gentry et al. 28939 (holotype, MO; isotype, HBG). Specimens examined. ECUADOR. Napo: Jatun Sacha Biological Station, 8 km E of Misahuallí, downstream on Río Napo, right bank, 1°08'S, 77°30'W, 450 m, 2–5 Sep 1988 (fl), Palacios 2855 (HBG, MO); ibid., 7–16 Sep 1988 (fl), Palacios 2938 (HBG, MO). Pastaza: Sarayacu on the Río Bobonaza, 14 Aug 1979 (fl), Lugo 5414 (GB); Sarayaquillo, ca. 5 km N of Sarayacu, 16 Aug 1979 (fl), Lugo 5474 (GB); Palta Playa, 15 km N of Sarayacu, 23 Aug 1979 (fl), Lugo 5599 (GB); Teresa Mama on the Río Bobonaza, ca. 35 km SE of Sarayacu, 26 Aug 1979 (fl), Lugo 5691 (GB); 12 km N of Arajuno, 9 Sep 1979 (fl), Lugo 5806 (GB). PERU. Loreto: Río Itaya, ca. 5 km above Iquitos, 6 Aug 1972 (fl), Croat 18805 (HBG, MO); Iquitos, 30 Jul 1906 (fl), Ducke s.n. (MG 7533, U, RB 20110); Prov. Maynas, Mishana, Río Nanay, halfway between Iquitos and Santa Maria de Nanay, trail to Campamento 1, 180 m, 30 May 1978 (st), A. Gentry et al. 22426 (MO); ibid., 130 m, 22 Jul 1980 (fl), A. Gentry et al. 28939 (type, HBG, MO); Río Nanay between mouth of Río Momon and Bellavista, 110 m, 17 Jun 1970 (fl), McDaniel 2461 (US); ibid., McDaniel 13569 (F, MO); Iquitos, Buena Suerte, Río Itaya, 4°10'S, 73°30'W, 130 m, 15 Nov 1986 (fr imm), R. Vásquez & Jaramillo 8372 (HBG, MO); Iquitos, Tessmann 3588 (NY); Caballococha on the Amazon River, 5 Aug 1929 (fl), Ll. Williams 2088 (F, NY, US). License: CC-BY-SA-4.0 Copyright: Jens G. Rohwer Tropicos Link: https://tropicos.org/name/17806047
Collection: Lauraceae - Laurel Family
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).
Contact:
Prof. Dr. Jens G. Rohwer
Systematics and Evolution of Plants
Ohnhorststr. 18
22609 Hamburg
Phone: +49 40 42816- 397
E-mail: jens.rohwer@uni-hamburg.de
