74 BRITISH CHAROPHYTA. 



fossulae {fossula, a little ditcli), the spaces between the ridges 



of the oospore, termed also sulci, 

 globule, a term applied to the antheridium. 

 gloeocarpous (yXotoe, mucus; KopTroc, fruit), having the repro- 

 ductive organs enveloped in mucus. 

 gymnocarpous (■yu^uvoc, naked ; Kopiroc, fruit), not having the 



reproductive organs enveloped in mucus. 

 gymnophyllous {jvfivh^, naked ; (jtvXKov, a leaf), having 



branchlets destitute of cortex. 

 gymnopodous {jvfivhq, naked ; 7roi»c, a foot), having the lowest 



internode of the branchlet ecorticate. 

 tgyrogonites (-yupo?, round ; yovf), a seed), the name applied 



by earlier geologists to the fossil fruits of Charo- 



phytes. 

 tgyroliths (■yupoc, round ; XiOog, a stone), another name for 



the fossil fruits, 

 haplostephanous (ottAoc, single; ariipavog, a crown), having a 



single circle of stipulodes at the base of each whorl of 



branchlets. Haplosfephanx, a section of Ghara. 

 haplostichous {airXog, single; ori^, a row), having a cortex 



with one row of cells to each branchlet or bract-cell. 



Hiiplostichse, a subsection of Ghara. 

 head-cells, (1) cells attached to the distal extremity of the 



manubrium, and bearing the filaments which contain 



the antherozoids; (2) cells produced on the exterior of the 



node-cells of the stem-cortex in some species of Ghara, 



and bearing the spine-cells, 

 heterophyllous (tTEpoc, different; fvWov, a leaf), having 



branchlets of more than one form. Heterophylls^, a 



subsection of Nitella [Brauii]. 

 holodactylous (oAoe, whole ; SaKTvXog, a finger), having ulti- 

 mate rays or dactyls, each composed of a single cell. 



HolodactylsB, a section of Nitella [Hy] . 

 homoeophyllns (o/xoioc, like; j>iiWov, a leaf), having but one 



form of branchlet. Homoeophyllse, a subsection of Nitella 



[ Braun] . 

 isostichous ["kjoq, equal; arX^, a row), having equal rows, 



applied to the stem-cortex of Ghara, when the primary 



and secondary rows are of equal diameter. 

 lamellae {lamella, a thin plate), the layers of the membrane of 



the oospore. 

 lime-shell, a hard shell surrounding the oospore, formed by 



a secretion of lime within the spiral-cells of the 



oojjonium. 



