SEL8Y LIBHAHY 80TANIC ICONES PLEUROTHALLIDINARUM :4L GARDEN,C' (ORCHIDACEAE) " MISCELLANEOUS SPECIES IN THE PLEUROTHALLIDINAE Carlyle A. Luer* With this concluding double issue of volume III and volume I, 300 spe­ cies of the Pleurothallidinae have been illustrated and described. The total number of species in about 20 genera is probably near 2000. About 1400 descriptions in Pleurothallis, and about 500 descriptions in Masdevallia have been published. The number of species in Pleurothallis is over 900, and in Masdevallia, about 300. Check-lists and keys for various regions and coun­ tries will begin to appear in later volumes. ADDENDA et CORRIGENDA SELBYANA 1:67 Remove Pleurothallis arietina and P. nelsonii from the synonymy of P. crocodiliceps. 1: 90 Remove Pleurothallis alpina from the synonymy of P. sicaria. 1: 200 This species, apparently heretofore undescribed, was identified as Pleurothallis excavata. See page 318 for a new description. 1:201 Figure 36. PLEUROTHALLIS IMAGO Luer. 1: 254 This species, apparently heretofore undescribed, was identified as Pleurothatlis magnipetala. See page 366 for a new des;cription. 1:255 Figure 62. PLEUROTHALLIS PROLATICOLLARIS Luer. 3:16 Masdevallia tenuissima C. Schweinf., Bot. Mus. Leafl.~4:1l1. 1937. Masdevallia butcheri Luer, Selby ana 3: 16. 1976. After reconsideration, I believe that the species described as M. butcheri is conspecific with M. tenuissima. 3:17 Figure 111. MASDEVALLIA TENUISSIMA C. Schweinf. 3:78 Small plants of Pleurothallis cogniauxiana Schltr. from Ecuador and Panama were erroneously identified as P. coffeicola. See pages 270 and 271, Figure 142. 3:160 Pleurothallis scandens Ames, Sched. Orchid. 5:18. 1923. Pleurothallis pennellia Luer, Selby ana 3:160. 1976. After nearly two years in cultivation, the plant on which the de­ scription of P. pennellia was based, has grown into a markedly scan dent plant indistinguishable from that of P. scandens. The minor differences of the lip are nonspecific. 3:161 Delete. *The Marie Selby Botanical Gardens. 203 .. --~.-.--'-" .. ~. .