OF THK one; ANN, 71 



When an anther consists of several horizontal conipait- 

 ments, the cellular texture, which connects the compartments, 

 is called connective (connectivum) ; (Tab. II. Fig. 2. 3.) 



There are remarkable variations from these forms, liow. 

 ever. In the Contortse, particularly the Asclepiadete, we ob- 

 serve two bodies of a club-shape, and waxy nature, wliich are 

 bound together by a peculiar knot, and stick under the folds 

 of the common column of imjwegnation. In the Orchidea*, 

 too, we find some masses of a granular substance (massa 

 granulosa, Liste7'ia, Epipactis), or of a substance composed 

 of globules of a definite number, (from two to four, Limodo- 

 rum. Tab. IV. Fig. 11.). These masses are often united by 

 distinct threads, but they are always connected into pairs, by 

 means of a small spherical body {retinaculum). These masses 

 of pollen are deposited in peculiar cavities of the common pil- 

 lar of impregnation {columna genltalium, or clhiandrium 

 gynostemii, Richard), and are commonly covered by a project- 

 ing part of the pillar {rostelhim gynostemii), (Tab. IV. Fig. 

 12.) This pillar, which supports both the anthers and the 

 stigma, has two longitudinal appendages, which seem like so 

 many abortive filaments (staminod'mm, Richard). The mass 

 of pollen, also, is frequently divided, in these plants, into two 

 longitudinal valves (massce sectiles, Orchis), and are connect- 

 ed with the retinaculum by particular tails (caudicula). 



There are other anthers of a compound form, some of 

 which seem to be more completely unfolded than the others. 

 Thus, Melastoma contains five large anthers, coloured like 

 the corolla, which bend down the filaments, that seem to liavc 

 joints in their centre, into a curved line. Five other yellow 

 coloured anthers have no jointed filaments. Similar forms arc 

 observed in Cassia, Hofmannseggia Cav. Anthonotha Pal. 

 Beauv., in Solanum cornutum, hcterodoxon, Fontanesianum, 

 and rostratum Dunal. 



Abortive anthers are called cffa-t^, as in the Heterostemon 

 Desfont. 



