(34 1 ~ R. Schlechter. 



58. V. scmipellucida Rchb. f., in Linnaea XXII (1849), p. 823. 



Humboldtia semipellucida 0. Ktze., Rev. Gen. (1891), j). 668. 

 Federal-District. 



59. P. semiscabra Ldl., Orch. Lind. (1846), p. 2. 



Humboldtia semiscabra O. Ktze., Rev. Gen. (1891), p. 668, 

 Merida. 



60. P. sicaria Ldl., Bot. Reg. (1841), Mise. p. 91. 



Pleurothallis tripteris Rchb. f., in Linnaea XXII (1849), p. 829. 

 Pleurothallis trigonopoda Kl., in Allg. Gartenztg. XXI (1853), p. 361 . 

 Humboldtia sicaria O. Ktze., Rev. Gen. (1891), p. 668. 

 Carabobo. 



61. P. Sirene Rchb. f., in Bonpl. III (1855), p. 71. 



Humboldtia Sirene O. Ktze., Rev. Gen. (1891), p. 668. 

 Merida ( ? ). 



62. P. stenocardium Schltr., in Notizbl. Bot. Gart. Dahlem VI (1914), 



p. 121. 

 Bolivar (Roraima). 



63. P. stenopetala Lodd., ex Bot. Reg. (1838), Mise. p. 95. 



Pleurothallis listrostachys Rchb. f., in Bonpl. II (1855), p. 71. 

 Humboldtia stenopetala O. Ktze., Rev. Gen. (1891), p. 668. 

 Bolivar (Roraima^. 



64. P. Talpiiiaria Rchb. f., in Flora LXIX (1886), p. 554. 



Talpinaria bivalvis Katst., Flor. Columb. I (1859), p 153, t. 76. 

 Federal-District 



65. P. testifolia Ldl., in Ann. et Mag. Nat. Hist. ser. 3, I (1858), p. 328. 



Cymbidium testaefolium Sw., in Nov. Act. Ups. (1799), p. 71. 

 Epidendrum testaefolium Sw., Prodr. (1788), p. 122. 

 Humboldtia testifolia 0. Ktze., Rev. Gen. (1891), p, 668. 

 8ucre. 



66. P. tridentata Kl., in AJlg. Gartenztg. VIII (1840), p. 289. 



Humboldtia tridentata O. Ktze., Rev. Gen. (1891), p. 668. 

 Federal-District. 



67. P. tripterantha Rchb. f., in Bonpl. II (1854), p. 24. 



Humboldtia tripterantha O. Ktze., Rev. Gen, (1891), p, 668. 

 Federal-Dist-rict. 



68. P. tripterygia Rchb f., in Bonpl. II (1854), p. 24. 



Humboldtia tripterygia 0. Ktze., Rev. Gen. (1891), p. 668. 

 Federal-District. 



69. P. truxilleiisis Rchb. f., in Bonpl. II (1854), p. 2o, 



Humboldtia truxiUensis 0. Ktze., Rev. Gen. (1891), p. 668. 

 Truxillo. 



