Cuscuta subg. Monogynella

(Des Moulins) Peter in H. G. A. Engler and K. Prantl

Nat. Pflanzenfam. 68[IV,3a]: 38. 1891.

Basionym: Monogynella Des Moulins Étud. Cuscut., 39, 65. 1853
Treatment appears in FNA Volume 14.
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Inflorescences thyrsoid: paniculiform, racemiform, or spiciform. Pedicels 0–2 mm. Flowers: style usually 1, sometimes distally 2-fid or separating into 2; stigma conic, ± cuboid, depressed-globose, ellipsoid, globose, obovoid, or ovoid. Capsules: dehiscence circumscissile. Seeds ± obcompressed; seed coat epidermis cells rectangular, not honeycombed when dry and papillate when wet.

Distribution

United States, Europe, Asia, Africa.

Discussion

Species 15 (2 in the flora).

Cuscuta cassytoides Nees ex Engelmann, known from Africa, was collected in North Carolina in 1918, probably as a waif on Quercus phellos; it is not known to be established or recurrent in the flora area.

Cuscuta reflexa Roxburgh, known from Asia, was collected in California in 1969; it is not known to be established or recurrent in the flora area.

Selected References

None.

Key

1 Calyces equaling corolla tube length. Cuscuta exaltata
1 Calyces 1/3–1/2 corolla tube length. Cuscuta japonica