Dioscorea porulosa (R.Knuth) Raz, 2016

Raz, Lauren, 2016, Untangling the West Indian Dioscoreaceae: New combinations, lectotypification and synonymy, Phytotaxa 258 (1), pp. 26-48 : 36

12. Dioscorea porulosa (R.Knuth) Raz , comb. nov. Rajania porulosa Knuth (1917: 221) . Type:— CUBA. Holguin: barren savannas southeast of Holguin, 28 Nov. 1909. Shafer 2952 ♀ (holotype B!, isotypes K! (000099324), NY!)

Rajania linearis (Griseb.) [Uline ex R.Knuth] Howard (1947: 118). Rajania linearis (Griseb.) Uline ex R. Knuth (1924:168) pro syn. Lectotype (designated by Howard 1947):— CUBA. Without locality, 1860-4, Wright 3254 [lectotype GH! ♀ (glued to sheet), isolectotypes BM! (♀), G! (♂ partial contents of packet, ♀ glued to sheet), MO! (♀ glued to sheet), S “A”! (♂)]. See D. nipensis .

Rajania howardii Borhidi nom. nud. in Borhidi, A. Phytogeography and Vegetation Ecology of Cuba: 435. 1996.

Notes: Endemic to Eastern Cuba. One of several linear-leaved species from the region. The K isotype of R. porulosa is mounted on the same sheet with four non-type specimens (in separate packets, each individually barcoded and labeled).

Rajania linearis (Griseb.) Uline ex Knuth was an unpublished name, cited by Knuth (1924) as a synonym of D. linearis (see D. nipensis below). It is listed in synonymy here because Howard reestablished the name with a different interpretation: the one he believed Uline had originally intended, based on the Rajania element of the GH sheet of Wright 3254 ( Howard, 1947). Under Howard’s interpretation, there is no D. linearis . See D. nipensis for the full, interwined nomenclatural histories of these taxa.