Tliis species was originally described from Soulh Patagonia. 
i 60. Closterium juncidum Raefs. — Antioquia: no 3 . 
i G r . Closterium Leibleinii Kütz. — Antioquia: n° 6. 
162. Closterium Libellula Focke var. intermedium (Roy and Biss.). (= Penium 
Libellait 1 var. intermedium Roy and Biss., 1894.) 
Zygosporæ subglobosæ, glabræ ; membrana aureo-fusca. 
Long. 92-96 a ; lat. 19-24 p- ; Iat. apic. 7-8 p. ; diam. zygosp. 34-38 p. (PI. XXXI 11 , 
fig. 60-61). 
Antioquia: no 4. 
About a dozen zygospores ot' tliis variety vvere seen. 
1 63 . Closterium littorale Gay var. crassum W. and G. S. West in Journ. Bot. 1896, 
p. 378, t. 36 r, f. 18. 
Long. 212 p. ; lat . 33 p. ; lat. apic. 5,5 p.. 
Antioquia: n° 7. 
j 64 • Closterium moniliferum (Bory) Ehrenb. — Cundinamarca : n° 18. 
1 65 . Closterium Navicula (Bréb.) Lütkem. — Antioquia: n° s 1 and 2. — Cundina- 
marca: N° 24. 
166. Closterium parvulum Næg. — Antioquia: n os 10, 11 and 12. 
Var. angustum W. and G. S. West. 
Forma cellulis (enuioribus ; lat. cell. 6 p. ; apicibus inter se dislantibus 1 1 5 p.. — 
Cundinamarca: n° 23 . 
Var.? (PL XXIII, fig. 58 ). 
Cellulis minus curvatis, polos versus plus minusve subiter attenualis, polis rotun- 
datis. Lat. 1 1 p. ; apicibus inter se distantibus i 32 y. 
Cundinamarca : n° 24. 
Each chloroplast possessed tliree pyrenoids and the apical locellus contained from 
two to three gypsum granules. Only one spécimen of tliis form was observed and it is 
qui te probable that it should be referred elsewhere. 
167. Closterium prælongum Bréb. forma brevior W. West. — Antioquia: n° 6. 
168. Closterium Pritchardianum Archer. — Antioquia : n° 6. 
169. Closterium Ralfsii Bréb. var. hybridum Rabenh. — Antioquia: n° 6. Cundi- 
namarca : n° 24. 
Long. 5 o 4 p- ; lat. 52 p. ; lat. apic. 8,5-9 p.. 
170. Closterium regulare Bréb. — Cundinamarca: n° 24. 
17 1. Closterium setaceum Ehrenb. — Cundinamarca: n° 23 . 
172. Closterium tumidum Johnson. — Antioquia: n ns 7 and 8. 
Long. 94-110 p. ; lat. i 4 -i 5,5 p. ; Iat. apic. 3 - 3,5 p.. 
173. Closterium turgidum Ehrenb. — Antioquia: nos 5 and 7. 
Long. 756 p. ; lat. 72 p.. 
Var. giganteum Nordst. 
