Linrusan 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 globosus 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 embryo- 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 embryo-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 having 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 Santalales, and to which he gives the following characters : — 



MoDECCOPSIS. 



Calyx su])eYus; limbo mimitissimo, 5-dentato. Petala 5, di&co epigyno 

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

 Ovarium omnino inferum, 1-loculare. Ovula 3, ex apice loculi ! pen- 

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

 subdrupaceus, monospermus, calyce demiim soluto quasi 5-valvis ! ! 

 AS'eweM imicurn, pendulum; endocarpio osseo inclusum. Albumen qo- 

 piosum. Radiculce locus superus. 



Frutex sca7idens, cirrhifer, cirrhis axillaribus. Folia alterna, exstipulattty 

 oblongo-ovata, ba.si suhcordata et quinque-venia. Flores mimtti, incori" 

 spicui. GlandulcB apice pilifercs ! Fructus ahortu solitarius, cum pe- 

 dicello clavato-pyriformis ; valva) intus rubrcs. 



Habitus Modeccce ; Rhamneis mediante Gouanid analoga ? Santalaceis 

 potius afRnis. 



Ilah. in Assamia Superiore, Oris Tenasserim, Mergui Provinci^, Ma- 

 lacca. 



Anniversary Meeting. 



May 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 



