228 



Leucolejeunea unciloba (Lindenb.) 

 Lejeioiea iinciloba Lindenb. in G. L. & N. Syn. Hep. 331. 1845. 

 Lejeiinca i^Archi-Lejenncd) unciloba Spruce, Hep. Amaz. et And. 



91. 1884. 

 Archilejennea unciloba Schiffn. in Engler & Prantl, Nat. Pflanzen- 



fam. i^: 130. 1895. 

 ArcJiilejeiinea Sellowiana^\.^^^\\. WQ.^\\\g\-a. 2,^: 62. 1895. 



On trees and rocks. Rhode Island and Delaware, south to 

 the West Indies, Texas, Mexico, and Brazil. 



Within recent years the Lcjcunca unciloba of Lindenberg has 

 been variously interpreted. Spruce referred to this species a 

 rather robust plant which he had collected in the vicinity of 

 the Amazon. Stephani considered this an error and renamed 

 Spruce's specimens A rc/iihyeunca S/>ruceana.* At the same time 

 he transferred the name unciloba to the Lejeiinea {Archi- Lejeufiea) 

 jiorentissiuia of Spruce, thereby reducing this latter species to 

 synonymy. During the past summer the writer had the privi- 

 lege of examining the specimens of Lejcunca unciloba preserved 

 in the Lindenberg herbarium at Vienna, including the material 

 from which the original description was drawn. This study led 

 to a third interpretation of the species. Lejeiinca u7iciloba is rep- 

 resented in the Vienna collection by seven specimens, numbered 

 consecutively from 6230 to 6236. These specimens came from 

 the following stations : 62JO, locality not given, Moritz ; 62JI, 

 Peru; <5.?j2, Colipa, Mexico, Li ebjnan ; 62JJ, Mirador, Mexico, 

 Liebinan ; 62J4, Brazil (the type material) ; 62j^, Paramaribo, 

 Dutch Guiana, Kegel ; 62j6, Mirador, Mexico, Liebinan. Of 

 these numbers 62j§ is marked with an interrogation point and is 

 evidently distinct from the others. It agrees with Lejeunea 

 jlorentissima Spruce and should be referred to this species rather 

 than to Lejeunea Auberiana Mont., as Stephani has done.f The 

 other specimens apparently agree with one another, although 

 62^0 and 62^1 are in poor condition and make a positive decision 

 on this point impossible. Fortunately the numbers from Brazil 

 and Mexico are more satisfactory and show that Lejeunea unciloba 



* Hedwigia 34 : 62. 1895. 

 •f L. c. 29 : 21. 1S90. 



