and an various Plants related to them, 325 



ill determining from mature specimens whether the anthers art' uni- or bi- 

 locular, admitting the term biloeularity as it is commonly used For. thoagb 

 the appearance of the apex of the male column, especially of the inner fa 

 its teeth or lobes (which are by no means always emargiuatc). is in favour of 

 the anthers being bilocular, yet the farrows visible on the column are equal in 

 number to the loculi ; and the disposition of t\\c vessels that appear to belong 

 more directly to the stamina is also that which ordinarily, I think, obtains 

 with unilocular anthers. The same, perhaps, may he said of the appearances 

 presented by a transverse section of the antheriferous pari of the column. 



Obs. IV. — The stigmatic tissues are highly developed, consisting of rery 

 long, nucleary cells, arranged over the whole surface of each lobe of tin- frame- 

 work, as it may be called, each of which communicates freely with the canal 

 of communication. In this part of its organization this species presents curious 

 analogies with Euhalus. Jussieu suggests an affinity with HydrocharuUce, 

 op. cit. p. 73. in observ. 



The structure of the ovula with reference to the direction of the apex of the 

 nucleus is only determinable in my specimens at a very early period, when the 

 prominence of the nucleus on the same line with the ovulum and funiculus is 

 easily observable. This prominence soon disappears, the mature ovula look- 

 ing like clavate truncate bodies. Of their internal structure I ascertained 

 nothing ; nor was I able to satisfy myself of any separation whatever of parts. 



§ 4. Asarjne^g. 



Thottea, Rottb. in Dansh. Vidensh. Set.sk. Schri/t. m/e Saml. ii. 530. t. '2. t.t 

 Endl. Gen. Plant. 345. no. 2161. 



Perianthium campanulatum, aequale, 3-partitum. Stamina circiter 35, biseriatim circa 00- 

 lumnam verticillata. Ovarium 4-loculare ; stigma discoideum stellato-lobatum. Frnefus 

 siliquiformis, 4-valvis, fills repliformibus totidem interjectis. Placenta libera, tetragona. 

 Shnina uniseriata, rugoso-papillosa. 



Frutex humilis, aromate et habitu Anonaceo. Folia magna, oblonga. Racemi e caulis parte 

 inferior e foliis denudatd. Flores amptissimi, penduli, conspicue venosi, extus tiamoso- 

 strigosi, intus arachnoidei. 



Thottea grandiflora, Rottb., loc. cit. 



Descr. Frutex 3-4-pedalis, satis robustus, apice parce ramosus ; ramulis pubesccntibus. 



