94. REPORT ON TWO BOTANICAL COLLECTIONS FROM 
carry away the spores, they are a better indication than phzenogamic plants as to the 
Flora we must regard as the remnant of another, which, like that of South America, 
once covered a wide area, and is now separated by intermediate barren plains or tree- 
less Llanos and Pampas of enormous extension where no Liverworts can live. 
That the spores are not able to propagate a Liverwort beyond, perhaps, a small area, 
no better example ean show than the very interesting flora of Killarney, where—doubtless 
for many centuries—a few species of Hepatie of tropical origin have been preserved 
without being able to reach the Continent. 
The present condition of the literature of Liverworts seldom allows one to make 
geographical speculations; but when my “Species Hepaticarum " is finished, and the 
number and relation of known liverworts, as also their distribution, settled, we may 
be able to draw conclusions which, I think, will be of value to all who study the 
geographical distribution of plants. 
The following Liverworts have been colleeted, viz. :— 
A. ANACROGYN X. 
1. DuxoRTIERA HIRSUTA, Nees, Hep. Eur. iv. p. 163. Marchantia hirsuta, Sw. Prodr. 
Fi. Ind. Occ. p. 145. 
Roraima, Ledge, 7500-8000 ft., McConnell & Quelch, 334/6. 
Common in Tropical and Subtropical America, England, Italy, Africa. 
2. ANEURA SCHWANECKEI, Steph. in Hedwigia xxvii. (1888), p. 278. 
Summit of Roraima, McConnell & Quelch, 512. 
Found also in the West-Indian Islands. 
3. ANEURA ALGOIDES, Steph. in Bull. Herb. Boiss. vii. (1899), p. 682.  Metzgeria algoides, 
Taylor, in Hook. Lond. Journ. Bot. v. (1846), p. 410. 
Summit of Roraima, McConnell & Quelch, 529. 
An Andine plant, collected by Jameson near Quito. 
4. ANEURA RORAIMENSIS, Steph., n. sp. Dioica, minor, pallide olivacea, aliis hepaticis 
consociata. Frons ad 5 mm. longa, exalata, irregulariter bipinnata, siepe subfasci- 
culata. Truncus primarius angustus, biconvexus, ramis trunco latioribus minus 
convexis. Cuticula ubique lamellata, lamellis denticulatis margine bene prominulis. 
Cellule frondis interne corticalibus multo majores, fronde in adspectu itaque 
optime reticulata. Rami feminei in trunco solitarii, breves, margine latissime 
alati, alis profunde inciso-lobatis, lobis lanceolatis vel ligulatis obtusis, squama 
basali similiter lobata ramulum 9 a tergo tegente. Reliqua desunt. 
A very good and most distinct species, easily to be recognized by the rough cuticula of 
the cortical cells. 
In the monograph of the genus Anewra (* Species Hepticarum,' p. 736) it isto be placed 
after No. 81, Aneura scabra, Steph. 
Summit of Roraima, McConnell & Queleh, 350. 
Mixed with Micropterygium 
pterygophyllum, Spruce. 
