M. glochidiata Moq. in DC., Prodr. 13(2): 18 (1849).

Sukhorukov, Alexander P., Sennikov, Alexander N., Nilova, Maya V., Mazei, Yuri, Kushunina, Maria, Marchioretto, Maria Salete & Hanacek, Pavel, 2019, Evolutionary relationships and taxonomy of Microtea (Microteaceae), a basal lineage in the core Caryophyllales, PhytoKeys 115, pp. 1-50 : 29-30

8. M. glochidiata Moq. in DC., Prodr. 13(2): 18 (1849).

Lectotype.

(Sukhorukov & Sennikov, designated here): BRAZIL. Piauhy [ Piauí], near Boa Esperança [-6.809768, -41.380520], February 1839, Gardner 2311 (K000601202! isolectotypes B! P00743948! P00743949! P00743950!). Notes: The lectotype specimen, Gardner 2311, was collected when G. Gardner used the hospitality of Rev. Marcos de Araújo Costa ( Gardner 1846), who was a land-owner, amateur botanist and educator in the province of Piauí, Brazil. The other collections cited in the protologue ( Moquin-Tandon 1849), Blanchet 2680 from Villa di Barra, belong to M. maypurensis (P00798999) and M. celosioides (BM000019298).

Description.

Annual, glabrous, up to 40 cm; stem erect, usually branched from the base with mostly persistent rosulate leaves; leaves linear to oblong, cuneate, 1.0- 3.0 cm long, 0.1-0.4 cm wide; inflorescence thyrsoid, flowers 1-6 at each node, pedicels at fruiting 1.5-2.5(3.0) mm long; each flower with a bract and two bracteoles; perianth segments 5, white or yellowish, broadly ovoid or suborbicular, 0.8-1.0 mm long, imbricate; stamens 5-8; stigmas 3-5, filiform; fruit orbicular, its body 1.0-1.2 mm, covered with plumose outgrowths 0.4-0.7 mm long (Fig. 7E, F ); pericarp easily scraped off the seed; seed ~1.0 mm, with slightly alveolate surface (Fig. 7H ).

Habitat.

Forest margins, roadsides, ruderal sites, on sandy substrates at altitudes up to 500 m a.s.l.

Distribution.

(Fig. 21 ) Eastern tropical Brazil.

Specimens examined.

BRAZIL: Bahia: Jacobina, [without date] Blanchet 2630 (P04598062); Nova da Rainha, [without date] Martius 304 / 18 (M); Gentio do Ouro, 22 Feb 1977, R.M. Harley 18907 (E, K, M, P05197098, U1473427); Gentio do Ouro Mun., nr Santo Inácio, 26 Feb 1977, R.M. Harley 19120 (E, P05197099, U1473426); Upper São Francisco river, Caldeirão Grande, 500 m, 18 Apr 1980, R.M. Harley 21511 (K); Riacho Grande, 4-5 km NE from Itatim, Santa Terezinha, 16 May 1983, L. Noblick et al. 3243 (PACA); Tucano Mun., 20 Feb 1992, A.M. de Carvalho & D.J.N. Hind 3841 (G, K, PACA); Paramirim Mun., Lago do Leito, 17 Jan 1997, G. Hatschbach et al. 65893 (H1693402); Rio de Contas Mun., 5 Feb 1997, M.L. Guedes et al. 5118 (K); Remanso, 27 Feb 2000, M.R. Fonseca et al. 46314 (K, P000868555); Remanso, 10 Mar 2005, L.P. Queiroz et al. 10070 (HUEFS093066 - image!); Ceará: Sobral, 8 Apr 1984, A. Fernandes 12451 (ASE0023720 - image!); Espírito Santo: between Colatina & Patrimônio, 4 Dec 1971, A.P. Duarte 13986 (PACA); Maranhão: Sao Raimundo das Mangabeiras Mun., 15 Mar 1962, G. Eiten & L.T. Eiten 3674 (K); Barao do Grajau, 21 Jan 2012, R.M. Harley et al. 56455 (K); Pernambuco: Petrolina, 22 Jan 1970, P. Carauta 1008 (RB169035 - image!); Piauí: see lectotype and isolectotypes of M. glochidiata ; Caracol, 25 Feb 2011, E. Melo et al. 9216 (PACA); Rio Grande do Norte: Jucurutu, 1 Jun 2008, A.A. Roque 570 (HUEFS164628 - image!).

Figures

Figure 7. Fruits and seeds of Microtea portoricensis and M. glochidiata: A, B fruit of M. portoricensis, enclosed in the perianth (Puerto Rico, Cabo Rojo, 1864, Grosourdy 13, P 04598159) C, D seed of M. portoricensis (Puerto Rico, Cabo Rojo, 1864, Grosourdy 13, P 04598159) E, F fruit of M. glochidiata (Brazil, Maranhao, Barao do Grajau, 21 Jan 2012, R. M. Harley et al. 56455, K) G, H seed of M. glochidiata (Brazil, Maranhao, Barao do Grajau, 21 Jan 2012, R. M. Harley et al. 56455, K). Magnification: A, E - 30 x, B, F - 100 x, C, G - 50 x, D, H - 300 x.

Figure 21. Distribution map of Microtea glochidiata.