BOTANICAL GAZETTE. 151 



cells. The lamina rarely extends to the middle of the subulate por- 

 tion of the leaf. A curious feature is the deciduous leaves above 

 described. On account of the longer cells of the lamina it cannot be 

 confounded with either D. subleucogaster or D. Donnellii. ^ 



Calymperes Donnellii, n. sp. — -Caule perbrevi gregario-cnespitoso; 

 foliis flexuoso- et subrecurvo-patentibus (siccitate constrictis et raagis 

 patentibus) e basi angustata longe ligulatis obtusiuscule acutatis 

 canaliculatis integerrimis opacis minime crebre papillosis angustis- 

 sime incrassato-marginatis vel margine concolore nonnullo planis 

 superior! bus apice valde constrictis, costa concolori valida percurrente 

 apice granulifera, cellulis minimis basilaribus per sj)atium magnum 

 acutura amplis hyalinis: cetera desunt. 



On trunks of trees, Caloosa, Florida, March, 1878, J. D. S. and C. 

 F. A.; scarce. 



Closely allied to C. Richardi^ C. M. (Aust. Exsic. Suppl. I.); but 

 readily distinguished by the leaves being flexuose-patent when dry; 

 they are also nearly twice as long, more opake and more minutely 

 areolated — the contracted granuliferous apex of the upper leaves 

 about half as broad, but usually much longer; the hyaline portion at 

 the base is composed of notably smaller cells, and is of a difl'erent 

 shape — the dividing line between it and the opake j^ortion passing 

 very obliquely upward from near the margin to the costa (much as 

 in C. disciforme). Remarkable for the most minute ordinary leaf- 

 cells, and for the leaves being widely spreading when dry. 



C. disciforme, C. Mull with the upper leaves very broad and bear- 

 ing filaments on the costa was also found sparingly on the Caloosa ; 

 also C.f ci'ispus, Aust. Bot. Gazette, II, p. 109 [Syrrhopodon?). 



There are indications of another new Calymperes from Caloosa, 

 Fla.; differing from C. disciforme in much narrower leaves, with fila- 

 ments borne on the costa from middle to apex. I have named it j^ro- 

 visionally, Calymperes filigcra. 



FissiDENS Donnellii, n. sp. — Dioicus, minutulus; foliis 3-4-jugis 

 immarginatis papillosis margine crenulato-serratis inferioribus ob- 

 longo-oVatis Cctteris multo majoribus lanceolato-linealibus, duplica- 

 tura ad medium producta, costa sub apice finiente, cellulis perminutis 

 papilla unica obtectis; pedicello perbrevi, capsulis destructis. 



On the base of trees in a cypress swamp, Caloosa, Florida. March, 

 1878, /. I). S. and C. F. A. 



This species is characterized by the papillose and crenulate immar- 

 ginate leaves, consisting of but 3 or 4 pairs, — the upper ones consid- 

 erably elongated. The male and female plants grow together. Un- 



