Parosela lloydii (Francis Ernest Lloyd, 1867-1947) Rydb., N. Amer. Fl. 24: 84. 1920 ("Lloydii"). — "Type collected at Cedros, Zacatecas, April 29, 1908, Lloyd 60..."Holotypus, US! isotypus, UC! — Dalea lloydii (Rydb.) Gentry, Madrono 10: 250. 1950.

A neat little shrub, becoming gnarled and woody at base, the decumbent branches sometimes rooting where they touch the ground, thereby forming miniature thickets Only depauperate inflorescences borne on lateral spurs during the dry season can properly be described as capitate, the majority being obviously spiciform, especially in fruit. The young twigs vary from glabrous to puberulent, sometimes in the same locality. I collected both at Carneros Pass, and the glabrous form grows at Concepcion del Oro, in the same range as Cedros, type-locality of Parosela lloydii. The only differential character assigned to the latter being a pubescent stem, it can be reduced to synonymy without regrets. A more distinguished variant, probably representing a taxonomically significant form, was collected by Rzedowski (no. 6472, ENCB) at 1600 m on the road from San Luis Potosi to Antiguo Morelos (near km 112, in mpo Guadalcazar). The specimens, collected in November, are depauperate, but silky-pilosulous throughout, in this different from all named forms of D. capitata. Spikes (probably starveling) 3-4-flowered, short but not capitate; leaflets 3-7, mostly 5, up to 2.5 mm long, pubescent both sides; bracts ± 2.5 mm long, pilosulous dorsally; calyx 5 mm, the tube ± 2.5 mm long, the dorsal tooth as long. The locality is only about 50 km n.-w. of the type-station of D. capitata var. quinqueflora, but the plant is different in many details.