Checklist of Bolivian Compositae - Royal Botanic Gardens, Kew

L
Laennecia Cass., Dict. Sci. Nat. 25: 91 (1822).
Conyza Less. sect. Laennecia (Cass.) Cuatrec., Webbia 24: 206 (1969), non Conyza sect. Laennecia (Cass.)
Cuatrec., Phytologia 9(1): 1 (1963), comb. illegit.
Laennecia Cass. sect. Sophiifolium G. L. Nesom, Phytologia 68(3): 208 (1990). Type: Laennecia sophiifolia
(Kunth) G. L. Nesom
Type: Conyza gnaphalioides Kunth = Laennecia gnaphalioides (Kunth) Cass.
References
Nesom, G. L. (1990). Taxonomy of the genus Laennecia (Asteraceae: Astereae). Phytologia 68(3): 205–228.
Zardini, E. M. (1981). Contribuciones para una monografia del género Conyza Less. II. Rehabilitación del
género Laennecia Cass. Darwiniana 23(1): 159–169.
Key to species
1. Stems and leaves densely woolly-tomentose; achenes with sessile glands L. gnaphalioides
Stem and leaves coarsely hairy; achenes glandular-stipitate 2
2. (1) Stems erect; capitula 1.5–2.5 (–3.5) mm diam; low altitude plants (1000–2700 m) L. sophiifolia
Stems decumbent; capitula 3–5 mm diam.; high altitude plants (3200–4200 m) L. artemisiifolia
Laennecia artemisiifolia (Meyen & Walp.) G. L. Nesom, Phytologia 68(3): 215 (1990).
Conyza artemisiifolia Meyen & Walp., Nov. Actorum Acad. Caes.-Leop. Nat. Cur. 19, Suppl. 1: 262 (1843).
Type: ‗Peruvia: in planitie circa Tacoram, alt. 14–17,000 ped. (v.s.)‘. Holotype: Bú.
Erigeron artemisiifolium (Meyen & Walp.) Sch.Bip., Bull. Soc. Bot. France 12: 81 (1865); Linnaea 34(5): 534 (Feb.
1866)
*Conyza andicola Phil., Anales Mus. Nac. Chile, Bot. 8: 38 (1891). Types: ‗Recolectada cerca de Napa, Vilñn,
Naquiða, Calcalhuay.‘ Pizarro (1960: 137) listed several specimens in SGO - 44242, 44243, 44244, 60566,
60567, 60568.
*Erigeron senecioides Wedd., Chloris Andina 1: 198 (1857). Type: ‗Hab. PÉROU: montagnes du dé[artement de
Cuzco! (Gay). – BOLIVIE: province de Carangas! (d’Orbigny, n. 1412).‘ Syntypes: P. Note: Under the species
Weddell mentioned two varieties, glutinosum and majus, but without asigning any of the cited material
to these varieties.
Conyza senecioides (Wedd.) Cabrera, Revista Invest. Agric. 11(4): 403 (1957).
Argentina, Bolivia (Cochabamba, La Paz), Chile, Peru.
Rocky or sandy soils, fallow areas, disturbed ground.
2900–4200 m.
(January–) February – May.
Laennecia gnaphalioides (Kunth) Cass., Dict. Sci. Nat. 25: 92 (1822).
*Conyza gnaphalioides Kunth in Humb., Bonpl. & Kunth, Nov. Gen. Sp. Pl. 4 (ed. folio): 57 (1818). Type:
‗Crescit locis alsis montis Cocollar, alt. 408 hex. (Prov. Cumanensi.) K Floret Septembri.‘ Holotype: P-
Bonpl.; isotype: B-W.
Marsea gnaphalioides (Kunth) V. M. Badillo, Bol. Soc. Venez. Ci. Nat. 10: 257 (1946).
Laennecia parvifolia DC., Prodr. 5: 376 (1836). Type: ‗ in Mexici valle Toluccanâ octob. flor. legit cl. Berlandier
(pl. exs. n. 1124!). ... (v.s.)‘. Holotype: G-DC; isotype: P.
Erigeron (Eschenbachia) niveus Sch.Bip., Bull. Soc. Bot. France 12: 81 (1865), nom. nud., (based on Mandon 221).
Note: Nesom (1990: 220) incorrectly cited this name as having a holotype and several isotypes. [Material in
BM, F (1025272), G, ?GH, K, LP, ?NY, P]
*Conyza evacioides Rusby, Bull. New York Bot. Gard. 4: 385 (1907). Type: [Bolivia:] ‗([Bang] No. 1875.)‘.
Holotype: NY (00167653); isotypes: ?F, G, GH (6109), K, NY (00167652), US (00350026), Z (000003253).
Conyza pulcherrima M. E. Jones, Contr. W. Bot. 12: 47 (1908). Type: ‗Soldier Canon, Sierra Madre Mts.,
Chihuahua, Mex., Sept., 1903, at 6000 feet alt., in the upper edge of the Lower Temperate Life Zone.‘
Holotype: POM; isotypes: ARIZ, BM, US (00857028, 02215651 – type fragment).