Lepidaploa (Cassini) Cassini (1817: 66) Cassini, 1825

Marques, Danilo, Farco, Gabriela Elizabeth, Nakajima, Jimi Naoki & Dematteis, Massimiliano, 2018, The genus Lepidaploa (Vernonieae, Asteraceae) in southern South America, Phytotaxa 362 (2), pp. 115-142 : 117

Key to species of Lepidaploa of southern South America

1. Clambering shrubs..............................................................................................................................................................................2

– Herbs, subshrubs or erect shrubs........................................................................................................................................................4

2. Venation brochidodromous; pappus brown; heads with 10–12 florets; involucre turbinate; basal stylar node narrow; species widely distributed in southern South America .............................................................................................................................. L. balansae

– Venation camptodromous-eucamptodromous; pappus whitish; heads with 20–27 florets; involucre campanulate; basal stylar node enlarged; species restricted to the province of Salta ...........................................................................................................................3

3. Involucre 6–7 mm in diam.; glandular trichomes present on corolla lobes; cypselae with idioblasts ............................... L. novarae

– Involucre 8–10 mm in diam.; glandular trichomes absent on corolla lobes; cypselae without idioblasts ........................ L. tarijensis

4. Branches prominently ribbed; anther appendages with glandular trichomes; basal stylar node narrow ............... L. pseudomuricata

– Branches not ribbed or slightly ribbed; anther appendages without glandular trichomes; basal stylar node enlarged......................5

5. Heads with 35–40 florets; branches, inflorescences, leaves and phyllaries strigose-tomentose; pappus nut-brown........ L. eriolepis

– Heads with 15–25 florets; branches, inflorescences, leaves and phyllaries glabrescent, pubescent, setulose, strigose, tomentose, velutinous or villous; pappus white or beige......................................................................................................................................6

6. Leaf margins entire.............................................................................................................................................................................7

– Leaf margins denticulate or serrate..................................................................................................................................................10

7. Leaves with petiole 13.5–14 mm long; corolla lobes without glandular trichomes.................................................... L. argyrotricha

– Leaves with petiole 0.3–7 mm long or sessile; corolla lobes with glandular trichomes....................................................................8

8. Leaf blade ovate, oval-lanceolate, ovate-lanceolate; leaves with petioles 3–7 mm long............................................. L. chamissonis

– Leaf blade lanceolate; leaves sessile or on petioles 0.3–0.4 mm long...............................................................................................9

9. Leaf margins revolute, adaxial surface strigose; inflorescence 1.6–3.6 cm long; phyllaries with apex apiculate-recurved................ ........................................................................................................................................................................................ L. decumbens

– Leaf margins plane, adaxial surface tomentose; inflorescence 12–13.2 cm long; phyllaries with apex apiculate-recurved ............... ........................................................................................................................................................................................ L. salzmannii

10. Leaves basal and cauline; venation camptodromous................................................................................................... L. psilostachya

– Leaves only cauline; venation eucamptodromous-brochidodromous or eucamptodromous-reticulodromous................................11

11. Leaf apex acute, venation eucamptodromous-reticulodromous; inner phyllaries with apex acute; glandular trichomes present on corolla lobes and style branches .................................................................................................................................... L. remotiflora

– Leaf apex apiculate, venation eucamptodromous-brochidodromous; inner phyllaries with apex apiculate or aristate; glandular trichomes absent on corolla lobes and style braches........................................................................................................................12

12. Leaves with petiole 1.5–2.6 mm long; heads with 17–18 florets; involucre 8–10 mm long; cypselae velutinous......... L. amambaia

– Leaves sessile; heads with 23–25 florets; involucre 12–14 mm long; cypselae sericeous-glandular ................... L. setososquamosa