186 Evans: HEpPATICAE OF PUERTO RICO 
essential characters of the perianth have already been noted, but it 
may be added that the lateral keels are distinctly winged and that 
the teeth are borne on the margins of the wings (FIGURE 1). The 
¢ inflorescence consists of a long spike with closely imbricated 
diandrous bracts, and the corresponding bracteoles are developed 
throughout its entire length. So far as known the vegetative re- 
production is entirely by means of leafy propagula occupying the 
position of normal branches and comparable with those found in 
Leptolejeunea and Drepanolejeunea. 
Two species of Odontolejeunea are now known from Puerto 
Rico and each has apparently been collected but a single time. 
The first of these, O. Junulata, was found many years ago by the 
Italian botanist Balbis, whose specimens are listed in the Synopsis 
Hepaticarum under ZL. sortwosa Lehm. & Lindenb. These speci- 
mens have been examined by Stephani * and also by Schiffner t 
and are referred by both to O. /unulata, of which L. sortuosa is 
now considered a synonym. The other species is O. Sceberiana 
(Gottsche) Schiffn., recently collected by the writer. Since the 
specimens of Balbis have not been readily accessible, the following 
description of O. /unulata is based largely on Jamaican specimens. 
ODONTOLEJEUNEA LUNULATA (Web.) Schiffn. 
Jungermannia lunulata Web. Hist. Musc. Hepat. Prodr. 33. 
1815. 
Jungermannia tortuosa Lehm. & Lindenb.; Lehmann, Pug. 
Plant..4:. 80.) i842. 
Lejeunea lunulata Nees; G. L. & N. Syn. Hep. 326. 1845: 
Lejeunea tortuosa Lehm. & Lindenb.; G. L. & N. Syn. Hep. 
S37) Thaw 
Jungermannia phyllogenides Brid.; G. L. & N. Syn. Hep. 327- 
1845 (as synonym). 
Lejeunea Martinicensis Lindenb.; G. L. & N. Syn. Hep. 328: 
1845. 
Lejeunea (Odonto-Lejeunea) lunulata Spruce, Hep. Amaz. et 
And. 145. 1884. 
siesan igang lunulata Schiffn.; Engler & Prantl, Nat. Pflan- 
zenfam, 1°: 128. 1893. 
a 
* Hedwigia, 27: 287. 1888. 
+ Bot. Jahrb. 23: 596. 1897. 
spina cae pve . a 
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