BOSTRYCHIA 145 
forms found elsewhere appear to make it difficult to consider them 
distinct species. Most of the specimens are apparently sterile, 
but of those under 123, one is cystocarpic and some others are 
incipiently tetrasporic. Of those under 465, the one just alluded 
to as being close to the type bears cystocarps. 
BOSTRYCHIA Mont. in Sagra, Hist. Cuba, РІ. Cell. 
39. 1838. Falkenb. Rhodomelaceen 504. 1901. 
Not Bostrychia Fr. Sv. Vet. Akad. Handl. 
1818: 119. 1818 
? Scorpioides Rouss. Fl. Calvad. 88. 1806 (ей. 2]. 
Amphibia Stackh. Mém. Soc. Imp. Nat. Moscou 2: 58, 89. 1809. 
Scorpiura Stackh. Ner. Brit. ix, xi. 1816 [ed. 2—not seen.] 
Not Scorpiurus L. Sp. Pl. 744. 1753. 
Helicothamnion Kütz. Linnaea 17: 105. 1843; Phyc. Gen. 433. 
1843. 
Stictosiphonia Harv. in Hook. f. Fl. Antarc. 483. 1847. 
BOSTRYCHIA LEPRIEURII Mont. Ann. Sci. Nat. Bot. III. 
14: 287. 1850. Ка. Tab. Phyc. 15: 9. pi. 23. 
f. а-с. 1865 
? Bostrychia rivularis Harv. Ner. Bor.-Am. 2: 57. pl. 14. f. D. 
1853. Ка. Tab. Phyc. 15: 9. pl. 22. f. d-g. 1865. 
Associated with Caloglossa Leprieurii, on and with oyster shells 
on the roots of Rhizophora, near Capón, region of Tumbes Coker 359 
b.b.—a few small, perhaps depauperate plants, one with two or 
. three somewhat rostrate cystocarps, the others sterile or with very 
young stichidia. The plants are greenish, but may have been 
decolored by the preserving fluid (formalin) or by the fresh water 
that, according to Dr. Coker, doubtless floods the aestuaries of 
the Tumbes region after the winter rains. 
The original materials of Bostrychia Leprieurii Mont. (Leprieur 
1113) we have been able to examine through the courtesy of 
the officials of the Muséum d'Histoire Naturelle of Paris. Lep- 
rieur's specimens came from French Guiana “іп locis aqua dulci 
et salsa alternatim obrutis." As compared with В. rivularis 
Harv. of the eastern and southern United States, the branches of 
ent кестен аге еее е, пов always, more 
