134 Evans: TAXILEJEUNEA PTEROGONIA 
Martinique only, Stephani (in his Species Hepaticarum) gives as its 
habitat, ‘‘ India occidentalis,” adding that it is very common. 
Stephani’s descriptions of IT. martinicensis are full and clear. 
He assigns to the species a dioicous inflorescence; contiguous, 
obliquely spreading, ovate-oblong leaves, acute or apiculate at 
the apex and sparingly dentate in the apical portion (entire or 
obliquely truncate-bidentate according to his 1896 description) ; a 
small ovate lobule, equalling the diameter of the stem and acutely 
angled at the truncate apex; cells measuring 36 u in the middle of 
the leaf and 36 x 54 u in the basal portion, with scarcely evident 
trigones; underleaves surpassing the leaves in size, cordate at the 
base (the basal auricles rotund and not connivent), and narrowly 
incised at the apex with an obtuse sinus and “acuminate acute’’ 
divisions; lanceolate (or ovate-lanceolate), entire and acute 
bracts, half the length of the leaves and with a short, linear 
acute or obtuse lobule, not discrete from the lobe; an obovate- 
obconic bracteole, as long as the bracts but twice as wide, one 
third incised-bilobed with a ‘‘straight’’ sinus and triangular, 
acuminate acute divisions (connivent and sometimes sparingly 
toothed in the 1896 description); and a small obovate-oblong 
perianth (measuring I x 0.6 mm.), truncate and obsoletely beaked 
at the apex, five-angled in the upper part, the angles or keels 
being entire. 
If Stephani’s descriptions of T. martinicensis are compared 
with his account of T. debilis it will be seen that the only important 
differences brought out are those derived from the perianth. In. 
the herbarium of the New York Botanical Garden there is a fine 
series of T. debilis, collected by Pére Duss on Martinique and 
determined by Stephani. Some of these specimens are completely 
sterile or show male inflorescences only; others are female and in 
some cases show well-developed perianths. So far as the writer 
has been able to observe these organs are invariably five-angled 
and destitute of wings and teeth. It is clear therefore that 
Stephani did not hesitate to refer to T. debilis plants which showed 
the perianth-characters of T. martinicensis. The study of the 
specimens of T. martinicensis, distributed by Husnot, shows that 
obtuse leaves are of occasional occurrence; that the auricles of 
the underleaves are sometimes so well developed that they almost 
