Typification of the name Stachys recta subsp. tenoreana (Lamiaceae)

Phytotaxa 419 (1): 110–112 https://www.mapress.com/j/pt/ Copyright © 2019 Magnolia Press ISSN 1179-3155 (print edition) Correspondence PHYTOTAXA ISSN 1179-3163 (online edition) https://doi.org/10.11646/phytotaxa.419.1.9 Typification of the name Stachys recta subsp. tenoreana (Lamiaceae) ADRIANO STINCA* & ASSUNTA ESPOSITO Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania Luigi Vanvitelli, 81100 Caserta, Italy; e-mail: [email protected], [email protected] * author for correspondence Stachys Linnaeus (1753: 580) (Lamiaceae) is a genus composed by annual/perennial herbs and small shrubs, with sessile or short-stalked flowers arranged in axillary clusters on the upper part of the stem forming raceme or spike inflorescences, and very variable calyx that represents an important trait for systematics. It is a subcosmopolitan genus, which includes approximately 370 species (Harley et al. 2004), mainly distributed in the Mediterranean and South-West Asia warm temperate regions. Stachys recta Linnaeus (1767: 82) belongs to S. sect. Olisia Dumortier (1827: 44), and its native distribution area extends from the West Europe (Spain) to East Asia (eastern Russia North-western Iran) (POWO 2019). It is a highly polymorphic taxon, in which eight subspecies have been recognized (POWO 2019), four of which are recorded in Italy (Bartolucci et al. 2018): S. recta subsp. grandiflora (Caruel 1860: 519) Arcangeli (1882: 551), S. recta subsp. recta, S. recta subsp. subcrenata (Visiani 1829: 15) Briquet (1893: 257), and S. recta subsp. tenoreana Bornmüller (1934: 81). However, according to Pignatti & Guarino (2019) the variability of S. recta in Italy has not yet been fully studied. Stachys recta subsp. tenoreana is a very rare Italian endemic (Peruzzi et al. 2014 continuously updated online at http:// goo.gl/x8QL4J; Bartolucci et al. 2018) recorded only for Capri Island in southern Italy (Ricciardi 1998). This taxon was recently assessed as DD (data deficient) in the IUCN Red List of the Italian Flora (Orsenigo et al. 2018). The typification of the name S. recta subsp. tenoreana is here presented and discussed. This research was carried out within the project “Italian loci classici census” (Domina et al. 2012, Peruzzi et al. 2015, 2019, Brundu et al. 2017) aimed at typifying all names of taxa described from Italy and at enhancing their systematic knowledge. Material and methods This work is based on the analysis of the relevant literature and examination of herbarium specimens preserved in B, where Bornmüller’s specimens are known to be preserved (Stafleu & Cowan 1976), and other European herbaria such as BR, C, E, FI, H, JE, K, MPU, PI, PORUN, and UPS. Typification of the name Stachys recta subsp. tenoreana Bornm. ≡ Stachys tenoreana Bornmüller (1934: 81). Type (lectotype, designated here):—ITALY. Capri: ad Punta Tragara, 200 m elevation, 16 June 1933, Bornmüller 58 (B100277666!; isolectotypes: B100277664!, B100277665!, B100277667!, K s.n.!). Nomenclatural notes:—Stachys recta subsp. tenoreana was validly described by Bornmüller (1934), who provided a detailed description and collection site: “Insula Capri: In rupestribus dumosis maritimis prope Punta Tragara, necnon in macchiis herbidis versus Anacapri; alt. 2–400 m s. m. (16. VI. 1933; BORNM. No. 58)”. In the same paper, for this plant the author also proposed the name Stachys tenoreana Bornm. Therefore, S. tenoreana and S. recta subsp. tenoreana can be considered as alternative names, validly published simultaneously (Art. 36.3 of ICN). At B and K we found five and one herbarium specimens, respectively, all collected in Capri Island by Bornmüller. The original labels reads: (1) “No. 58 | Stachys Tenoreana Bornm. sp.nov. (= Stachys subcrenata Vis. var. (nov.) leiocalycina Bornm. in litt.) | Capri: ad Punta Tragara in rupibus herbidis | 200 m. s. m. | 16 21 V 1933” (B100277663, image available at http://herbarium.bgbm.org/object/B100277663); (2) “No. 58 | Stachys Tenoreana Bornm. sp.nov. (= Stachys subcrenata Vis. var. (nov.) leiocalycina Bornm. in litt.) | Capri: ad rupes pr. Punta Tragara | c. 200 m. s. m. | 16 VI 1933” (B100277664, image 110 Accepted by Jesús González-Gallegos: 24 Sept. 2019; published: 30 Sept. 2019 available at http://herbarium.bgbm.org/object/B100277664); (3) “No. 58 | Stachys Tenoreana Bornm. sp.nov. (= Stachys subcrenata Vis. var. (nov.) leiocalycina Bornm. in litt.) | Capri: ad rupes pr. Punta Tragara | c. 200 m. s. m. | 16 VI 1933” (B100277665, image available at http://herbarium.bgbm.org/object/B100277665); (4) “No. 58 | Stachys Tenoreana Bornm. sp.nov. (= St. subcrenata Vis. var. leiocalycina Bornm. in litt.) | Capri: ad Punta Tragara | c. 200 m. s. m. | 16 VI 1933” (B100277666, image available at http://herbarium.bgbm.org/object/B100277666); (5) “No. 58 | Stachys Tenoreana Bornm. sp.nov. (= Stachys subcrenata Vis. var. leiocalycina Bornm. in litt.) | Capri: ad rupes pr. Punta Tragara | c. 200 m. s. m. | 16 VI 1933” (B100277667, image available at http://herbarium.bgbm.org/object/B100277667); (6) “No. 58 | Stachys Tenoreana Bornm. sp.nov. (= Stachys subcrenata Vis. var. (nov.) leiocalycina Bornm. in litt.) | Capri: ad rupes pr. Punta Tragara | c. 200 m. s. m. | 16 VI 1933” (K s.n.). On each sheet, two or more well preserved fragments are mounted, and label reporting the same code (“No. 58”) cited in the protologue. As the collection date of sample B100277663 is “16 21 V 1933”, this specimen cannot be considered as original material (Art. 9.4 of the ICN). Therefore, we selected the specimen B100277666 as lectotype, since this exsiccatum displays better than others samples the morphological characteristics matching the Bornmüller’s diagnosis (e.g. basal and middle leaves from oblong to obovate up to 15 mm wide, calyx glabrous and 8–10 mm long, corolla up to 16 mm long with lower lip 9–11 mm long). Moreover, we selected the specimens B100277664, B100277665, B100277667, and K s.n. as isolectotypes. Acknowledgements We thank the directors and curators of all the listed herbaria for their indispensable support, Fabrizio Bartolucci (Barisciano) for the useful discussions, and anonymous reviewer for its comments that allowed us to improve the manuscript. References Arcangeli, G. (1882) Compendio della Flora Italiana. 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