taxonID	type	description	language	source
03A9FF55FFEBFFDFFFCDFD4CFA8EBF06.taxon	materials_examined	Lectotypus (designated here): CoSTA RICA: San Miguel, near Sarapiqui River, 16. V. 1857, H. Wendland 71 (GOET [GOET 025396]!).	en	Dowe, John Leslie, Hodel, Donald Robert (2021): Taxonomy and nomenclature of four unresolved names published by Udo Dammer in the genus Chamaedorea (Arecaceae). Candollea 76 (1): 93-98, DOI: 10.15553/c2021v761a09
03A9FF55FFEBFFDFFFCDFD4CFA8EBF06.taxon	materials_examined	Holotypus: MEXICo: Oaxaca, Chinantla, S. Pedro Tepinapa, VII. 1842, Liebmann s. n. (C [C 10006547]!; iso-: P [P 00725352, P 00725253]!, US [US 00021723, US 00021747]!).	en	Dowe, John Leslie, Hodel, Donald Robert (2021): Taxonomy and nomenclature of four unresolved names published by Udo Dammer in the genus Chamaedorea (Arecaceae). Candollea 76 (1): 93-98, DOI: 10.15553/c2021v761a09
03A9FF55FFEBFFDFFFCDFD4CFA8EBF06.taxon	materials_examined	Lectotypus (designated here): [CoSTA RICA]: cultivated in Paris, “ 1921 – 1922 ”, Guillaumin s. n. (P [3 - part specimen: P 00725349, P 00725350 excl. fragm. packet, P 00725351]!).	en	Dowe, John Leslie, Hodel, Donald Robert (2021): Taxonomy and nomenclature of four unresolved names published by Udo Dammer in the genus Chamaedorea (Arecaceae). Candollea 76 (1): 93-98, DOI: 10.15553/c2021v761a09
03A9FF55FFEBFFDFFFCDFD4CFA8EBF06.taxon	discussion	Notes. – DAMMER (1905) provided the following description when presenting the firstuse of the name Chamaedorea exorrhiza: leaves pinnate, segments lanceolate, 10 – 20 per side, more than 5 cm wide, 9 - nerved. Dammer’s publication clearly satisfies the requirements of valid publication of the name. GUILLAUMIN (1922: 542) described the same species based on a plant cultivated in the greenhouse in Paris grown from seeds received from Wendland in 1901 because he believed that Dammer’s species was not validly published and noted that: “ C’est sans doute la même espèce que celle signalée sans description, sous le nom de C. exorrhiza Wendl par Dammer [It is probably the same species reported without description, under the name of C. exorrhiza Wendl by Dammer] ”. Guillaumin’s name has therefore to be treated as an illegitimate later homonym, and a heterotypic synonym, of Dammer’s name. Original material in P is a mixed gathering between the Guillaumin collection and the seeds sent by Wendland in the fragment packet of P 00725350. Therefore a lectotype is designated here on the Guillaumin cultivated collection from 1921 – 1922. Guillaumin’s later homonym has previously been proposed as the valid publication of Chamaedorea exorrhiza (HODEL, 1992 a; GOVAERTS et al., 2021). The lectotype of Chamaedorea exorrhiza H. Wendl. ex Dammer chosen here [GOET 025396] consists of a single collection composed of five sheets. One sheet has a complete inflorescence including bracts, an inflorescence without bracts, and a leaf petiole. The remaining four sheets hold a complete leaf divided into four sections. The collection was labelled by Wendland as “ Morenia (Stephanostachya) exorrhiza ”. Chamaedorea tepejilote (Fig. 1 A) is one of the most wideranging species in the genus, occurring from Colombia north into Mexico. One of the largest species of the genus in habit, it is unusually variable across its range and is found as solitary or cespitose individuals and has leaves and inflorescences that vary in size and quantity of subdivisions (pinnae and rachillae). In the northern part of its range, especially in Guatemala and southern Mexico, it has been domesticated and cultivated for thousands of years for its unopened staminate inflorescences consumed as a cooked vegetable called “ pacaya ”.	en	Dowe, John Leslie, Hodel, Donald Robert (2021): Taxonomy and nomenclature of four unresolved names published by Udo Dammer in the genus Chamaedorea (Arecaceae). Candollea 76 (1): 93-98, DOI: 10.15553/c2021v761a09
03A9FF55FFEBFFD8FC9DFB8CFE8EB807.taxon	materials_examined	Lectotypus (designated here): MEXICo: Oaxaca, 2000 – 3000 ft [600 – 900 m], s. d., H. Galeotti 4972 ter (GOET [GOET 025370]!).	en	Dowe, John Leslie, Hodel, Donald Robert (2021): Taxonomy and nomenclature of four unresolved names published by Udo Dammer in the genus Chamaedorea (Arecaceae). Candollea 76 (1): 93-98, DOI: 10.15553/c2021v761a09
03A9FF55FFEBFFD8FC9DFB8CFE8EB807.taxon	materials_examined	Holotypus: MEXICo: Veracruz, Jalapa, s. d., Schiede s. n. (M [M 0208949]!).	en	Dowe, John Leslie, Hodel, Donald Robert (2021): Taxonomy and nomenclature of four unresolved names published by Udo Dammer in the genus Chamaedorea (Arecaceae). Candollea 76 (1): 93-98, DOI: 10.15553/c2021v761a09
03A9FF55FFEBFFD8FC9DFB8CFE8EB807.taxon	discussion	Notes. – DAMMER (1905) provided the following description: leaves pinnate, segments regularly arranged, either lanceolate, oblong-lanceolate or elliptical, not decurrent, less than 15 per side, less than 3 cm wide, single nerved. The specimen designated here as lectotype for Chamaedorea galeottiana [Galeotti 4972] was cited in MARTENS & GALEOTTI (1843) under the name “ Chamaedorea oblongata? Mart. ” and was noted as growing in the woods and dark damp ravines of the German Colony of Mirador from 2,000 to 5,000 feet with yellow flowers in December. After returning to Europe, Galeotti renumbered his collections more or less into family groups, so specimen numbers cannot provide any information about time or place of his collections (MCVAUGH, 1973). Henri-Guillaume Galeotti (1814 – 1858) was a French-born Belgian botanist and collector in Central America (1835 – 1840) and later director of the botanic garden of Bruxelles (1853 – 1858) (MCVAUGH, 1973). The lectotype chosen here [GOET 25370] consists of a single collection composed of two sheets. One sheet has a complete inflorescence with attached fruit, and the apical portion of a leaf. The second sheet has the middle and basal portions of a leaf. The collection was labelled by Wendland as “ Ch. galeottiana sp. nov. ”. Chamaedorea elatior (Fig. 1 B), currently the only climbing species in the genus, has reflexed terminal pinnae that act like grappling hooks, enabling the plant to clamber up and onto adjacent vegetation. Ranging from Honduras into Mexico, it is a variable species in habit, with solitary, cespitose, and aerially branched forms, and in leaf, with an unusual form that retains simple, bifid, typically juvenile foliage well into maturity. More work is needed to sort out these various segregates of C. elatior satisfactorily; some might be worthy of specific or varietal status.	en	Dowe, John Leslie, Hodel, Donald Robert (2021): Taxonomy and nomenclature of four unresolved names published by Udo Dammer in the genus Chamaedorea (Arecaceae). Candollea 76 (1): 93-98, DOI: 10.15553/c2021v761a09
03A9FF55FFECFFD8FF34FC8CFE30BC4D.taxon	materials_examined	Lectotypus (designated here): CoSTA RICA: Turrialba, 24. III. 1857, H. Wendland 27 & 32 (GOET [GOET 025302]!). Syntypus: ibid. loco, H. Wendland 27 (GOET [GOET 025301]!).	en	Dowe, John Leslie, Hodel, Donald Robert (2021): Taxonomy and nomenclature of four unresolved names published by Udo Dammer in the genus Chamaedorea (Arecaceae). Candollea 76 (1): 93-98, DOI: 10.15553/c2021v761a09
03A9FF55FFECFFD8FF34FC8CFE30BC4D.taxon	materials_examined	Holotypus: [CoSTA RICA or PANAMA]: cultivated in Herenhausen Gardens, Germany, s. d., H. Wendland s. n. (GOET [GOET 025403]!; iso-: K [K 000462925]!).	en	Dowe, John Leslie, Hodel, Donald Robert (2021): Taxonomy and nomenclature of four unresolved names published by Udo Dammer in the genus Chamaedorea (Arecaceae). Candollea 76 (1): 93-98, DOI: 10.15553/c2021v761a09
03A9FF55FFECFFD8FF34FC8CFE30BC4D.taxon	discussion	Notes. – DAMMER (1905) provided the following description: leaves pinnate, segments 5 – 7 per side, 2 to 4 times longer than broad, 25 – 50 cm long, 7 – 9 nerved. The lectotype chosen here [GOET 025302] consists of a single collection composed of two sheets. One sheet has three inflorescences that lack bracts, and with the remains of some flowers and calyxes. The second sheet contains a section of stem, a large number of detached pinnae, sections of naked rachis and a complete crownshaft. There are two labels in Wendland’s hand: one includes “ Morenia warscewiczii N. 27 & 32. Turialba. 24.3.57 ”, the other “ Ch. homomalla ”. The remaining syntype [GOET 025301] has a label in Wendland’s hand: “ 27. Ch. homomalla ”. Chamaedorea warscewiczii (Fig. 1 C), which occurs in Costa Rica and Panama, is a handsome species because of its leafy crown and broadly rhombic, sigmoid, conspicuously 5 – 9 - nerved pinnae. The pistillate inflorescence, with its rachillae typically and uniformly curved in the same direction, is distinctive and diagnostic.	en	Dowe, John Leslie, Hodel, Donald Robert (2021): Taxonomy and nomenclature of four unresolved names published by Udo Dammer in the genus Chamaedorea (Arecaceae). Candollea 76 (1): 93-98, DOI: 10.15553/c2021v761a09
03A9FF55FFECFFD8FC84FEACFBF4BECD.taxon	materials_examined	Lectotypus (designated here): CoSTA RICA: above Turrialba, 25. III. 1857, H. Wendland 24 (GOET [GOET 025266]!).	en	Dowe, John Leslie, Hodel, Donald Robert (2021): Taxonomy and nomenclature of four unresolved names published by Udo Dammer in the genus Chamaedorea (Arecaceae). Candollea 76 (1): 93-98, DOI: 10.15553/c2021v761a09
03A9FF55FFECFFD8FC84FEACFBF4BECD.taxon	materials_examined	Holotypus: CoSTA RICA: Cartago, Turrialba, s. d., Oersted s. n. (C [C 6543]!).	en	Dowe, John Leslie, Hodel, Donald Robert (2021): Taxonomy and nomenclature of four unresolved names published by Udo Dammer in the genus Chamaedorea (Arecaceae). Candollea 76 (1): 93-98, DOI: 10.15553/c2021v761a09
03A9FF55FFECFFD8FC84FEACFBF4BECD.taxon	discussion	Notes. – DAMMER (1905) provided the following description: leaves pinnate, segments lanceolate, oblong lanceolate or elliptical, almost imbricate, more than 20 per side, greater than 30.5 cm long, 3.5 – 3.8 cm wide. WENDLAND (1857) related his observation of Chamaedorea species in the vicinity of Turrialba where the type specimen of C. inaequilateralis was collected. In his report dated 4 April 1857 written at San Jose, Costa Rica, Wendland noted that among the plants gathered at Turrialba were chamaedoreas that had roots emerging from high on the stem. The lectotype chosen here [GOET 025266] consists of a single collection composed of three sheets. One sheet includes a complete inflorescence with flowers. The second sheet includes a complete inflorescence with flowers, the apical portion of a leaf with intact pinnae and sections of leaf rachis lacking pinnae. The third sheet includes numerous detached pinnae. There is a label in Wendland’s hand: “ Morenia (Chamaedorea) inaequilatera ”. Chamaedorea costaricana (Fig. 1 D), with clustering stems and long-pinnate leaves, is a variable and wide-ranging species occurring from at least Panama in the south to Honduras in the north. If one includes the perhaps-not-distinct C. quezalteca Standl. & Steyerm. in C. costaricana, its range extends north into Mexico.	en	Dowe, John Leslie, Hodel, Donald Robert (2021): Taxonomy and nomenclature of four unresolved names published by Udo Dammer in the genus Chamaedorea (Arecaceae). Candollea 76 (1): 93-98, DOI: 10.15553/c2021v761a09
