Hepaticae : Yale Peruvian Expedition of igii. 315 



IX. Taxilejeunea (Spruce) Schiffn. 

 19. Taxilejeunea debilis (Lehm. & Lindenb.) Schiffn. 

 Jungetmannia debilis Lehm. & Lindenb.; Lehmann, Pug. Plant. 4: 

 51. 1832. 



Lejeunea debilis Lehm. & Lindenb.; Nees & Montagne, Ann. des Sc. 

 Nat. Bot. II. 5: 60. 1836. Montagne, Fl. Boliv. in d'Orbigny, Voy. 

 dans I'Amer. Merid. ^^i 63. pi. 1. f. 2. 1839. 



Omphalanthus debilis Lehm. & Lindenb. ; G. L. & N. Syn. Hep. 306. 

 1845. 



Lejeunea [Taxi-Lejeunea) debilis Steph. Hedwigia 29: 12. 1890. 



Taxilejeunea debilis Schiffn. Bot. Jahrb. 23: 579. 1897. 



On earth, San Miguel, 5,000-6,000 feet, July 24, 1911. 



A pale and delicate species growing in loose tufts. Widely 

 distributed in the American tropics from the West Indies, through 

 Mexico and Colombia, to Peru and Bolivia. The original material 

 came from the island of St. Vincent, collector's name unknown. 

 The specimens in the present collection have perianths and are 

 in excellent condition. 



20. Taxilejeunea florida (Spruce) Steph. 



Lejeunea {Taxi-Lejeunea) florida Spruce, Hep. Amaz. et And. 221. 

 1884. 



Taxilejeunea florida Steph. Sp. Hep. 5: 467. 1914. 



OUantaytambo, 9,000 feet, July 21, 1911. 



This species was based on material collected by Spruce in the 

 Andes of Ecuador. Unfortunately the Peruvian specimens lack 

 perianths, but they show both male and female inflorescences and 

 agree closely with Spruce's full description. 



21. Taxilejeunea pterogonia (Lehm. & Lindenb.) Schiffn. 



Jungermannia pterogonia Lehm. & Lindenb.; Lehmann, Pug. 

 Plant. 6: 44. 1834. 



Omphalanthus pterogonius Lehm. & Lindenb.; G. L. & N. Syn. 

 Hep. 306. 1845. 



Omphalanthus subalatus Lindenb. & Gottsche; G. L. & N. Syn. 

 Hep. 747. 1847. 



Lejeunea {Taxi-Lejeunea) pterogonia Spruce, Hep. Amaz. et 

 And. 216. 1884. 



Taxilejeunea pterogonia Schiffn.; Engler & Prantl, Nat. Pflanzen- 

 fam. 13; 125. 1895. 



On earth, San Miguel, 5,000-6,000 feet, July 24, 1911. 



