M. portoricensis Urb., Ber. Deutsch. Bot. Ges. 3: 324 (1885).

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 : 28

7. M. portoricensis Urb., Ber. Deutsch. Bot. Ges. 3: 324 (1885).

Lectotype.

(designated by Nowicke 1968: 348, first-step lectotype; Sennikov & Sukhorukov, second-step lectotype designated here): PUERTO RICO. Cabo Rojo, in campis, 20 January 1885, P. Sintenis 717 (S-R-3531 - image! isolectotypes P00743938! B 10 0296282! B 10 0296820! BM000019288! G! K000601210! P00743938! P00743939! L1678241! L1678242! LE!).

Description.

Annual, glabrous, stems decumbent, up to 30 cm; rosulate leaves up to 8.0 cm, long-petiolate (petioles up to 3.0 cm), obovate or oblong, mostly persistent at fruiting; cauline leaves rhombic or ovate, cuneate; inflorescence a spike, one-sided, flowers sessile or very shortly pedicellate (pedicels at fruiting ~1.0 mm); bracteoles mostly absent or tiny; perianth segments 4-5, greenish, lanceolate or oblong; stamens 4-5; stigmas 2, thick; fruit almost orbicular or broadly ovate, 0.9-1.1 × 0.9-1.0 mm, reticulate, without any projections (Fig. 7A, B ); seed 0.9-1.0 mm, with rough surface (Fig. 7D ). Note: This species is assigned here to the type subgenus, although it was not included in the molecular analysis. Morphologically, it is closely related to M. debilis .

Distribution.

Endemic to the Greater Antilles (Fig. 20 ).

Specimens examined.

DOMINICAN REPUBLIC: reported by Moscoso (1943) and Nowicke (1968 ["herbarium S"] (n.v.); HAITI: reported by Nowicke (1968), herbarium S (n.v.); CUBA: Santiago de las Vegas, 10 May 1904, H.A. van Hermann 121 (BM00019279, P04598109); Ramón de la Sagra, [without date] A. Jamain s.n. (P04598110); Limonar, 1864, Angel 771 (LE); Havana, 3 Nov 1921, E.L. Ekman 13408 (G); PUERTO RICO: see type specimens; Cabo Rojo, 1864, Grosourdy 13 (P04598159); Laguna Derrumadero, nr Bayaguana, 7 Sep 1981, T. Zanoni & M. Mejia 16407 (NY01509884 - 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 20. Distribution map of Microtea portoricensis.