Linnaan Society. 209 



Nor is this all, Osyris has its albumen and embryo developed outside 

 that end of the sac to which the pollen tubes are applied : Loranthus 

 bicolor has the same developed outside the opposite end of the sac. 

 And the partial development of the albumen in the embryo-sac of 

 Loranthus glohosus may perhaps be a passage to its development out- 

 side that sac in L. bicolor. 



" The novel points of structure and development pointed out in 

 this paper are, so far as I know, the possibility of the separation of 

 a continuous membranous embrj'o-sac into two distinct parts, of 

 which the lower remains unchanged, though it would almost appear 

 from Osyris to be the most permanent ; the presence of the embryo- 

 sac not being necessarily connected with its forming one of the con- 

 stituent parts of the young or of the mature seed ; the longitudinal 

 percursion of the embrj^o-sac by the pollen tubes ; the formation of 

 the albumen either only partially within the embryo-sac, or almost 

 entirely, if not quite so, without it ; the confluence of the albumina 

 of several sacs into one albumen ; the growth of the embryonic tis- 

 sues from the continuations of the pollen tubes outside the embryo- 

 sac ; the possibility of one embryo resulting from a combination of 

 several pollen tubes, and of its becoming interior to the albumen, 

 although it may have been for some time entirely exterior to it. 



" I make no mention of the posterior prolongations of the sacs, in 

 doubt of the true nature or origin of the so-called chalazal apparatus 

 of Thesium ; or of the growth of the embryonic tissues from the ends 

 of the pollen tubes, in doubt of my ha\'ing misunderstood the obser- 

 vations of M. Schleiden, and in ignorance of those of M.Wydler." 



In a subsequent note Mr. Griffith notices certain peculiarities in 

 the development of the embryo in Avicennia, and in a genus which, 

 notwithstanding its very curious anomalies, he considers referrible 

 to Sunt (dales, and to which he gives the following characters : — 



MODECCOPSIS. 



Calyx superus ; limbo minutissimo, 5-dentato. Petala 5, disco epigyno 

 inserta, basi utriiique uni-glandulosa. Stamina 5, petalis opposita. 

 Ovarium omniiio infenim, 1-loculare. Ovitla 3, ex apice loculi ! pen- 

 dula, anatropa ! Stylus brevis. Stigmata 3, subcapitata. Fructus 

 subdrupaceus, monospcrmus, calyce dcmum soluto quasi 5-valvis ! ! 

 Seiue?i unicum, pendulum ; endocarplo osseo inclusum. Alhum.en co- 

 piosum. RadicitlcB locus superus. 



Frutex scandens, cirrliifer, cirrliis axillarihus. Folia alterna, exstipulata, 

 ohlongo-ovata, basi suhcordafa et quinqne-venia. Flores minitti, incon- 

 spicui. Glandulse apice pilifcres ! Fructus abortu solitarius, cum pe- 

 dicello clavafo-pyriformis ; valvse intiis rubrce. 



Habitus Modeccce ; Rhamneis mediante Gouanid analoga ? Santalaceia 

 potius affinis. 



Ilab. in Assamia Superiore, Oris Tenasserini, Mergui Provincia, Ma- 

 lacca. 



An7iiversary Meeting. 



IVIay 24. — The Lord Bishop of Norwich, President, in the Chair. 

 The President opened the business of the Meeting, and having 

 stated the number of Members whom the Society had lost during 



