20 Dr. W. Arnott on some nem or rare Indian Plants. 



with the sides two ridges, entirely immersed, between which 

 are found the folds of the dorsal sinus. 



Besides A. Becheri and A. Henslowi, I place in this section 

 A. Mnnsteri, von Buch, A. orbicularis, Miinster, and also A, 

 planus, Miinst., which are all three found in the transition lime- 

 stone of the Fichtelgebirge, and are characterized by the lateral 

 lobes becoming larger and larger as they approach the suture. 

 This distinction establishes in the section two very natural 

 subdivisions. 



[To be continued.] 



III. — Descriptions of some New or rare Indian Plants. By 

 G. A. W. Arnott, Esq., LL.D. 



Schizostigma, Am. (Rubiacece). 



Calycis tubus globosus, limbus 5-partitus, laciniis lanceolatis. Co- 

 rolla infundibuliformis, intus pubescens, extus hirsuta, ad medium 

 usque 5-fida, laciniis lineari-lanceolatis patulis. Anther ce 5, lineares, 

 obtusee, ad faucem sessiles. Ovarium cohserens, multiloculare, lo- 

 culis multiovulatis. Stylus filiformis, stamina longe superans. Stigma 

 multi- (4 — 7) fidum, segmentis linearibus patulis. Fructus indehi- 

 scens, baccatus, globosus, costatus, hirsutus, laciniis calycinis folia- 

 ceis patentibus coronatus, pluri-(4 — 7) locularis, loculis polyspermis. 



Herba decumbens vel subrepens, hirsuta. Caules simplices, 4 — 8 

 poll, longi. Folia, 1^ — 2 poll, longa, opposita, longiuscule petiolata t 

 oblong o-lanceolata, integerrima, supra viridia, parcius pilosa, subtus 

 pallida. Stipulse inter petiolares, late ovatce, acuta, membranacece. 

 Flores, 8 — 9 tin. longi, axillares, solitarii, alterni, subsessiles, basi 

 bracteis duabus stipulis subsimilibus stipati. 



1. S. hirsutum, Arn. 



Hab. in insula Ceylon. 



This genus may be placed near Sabicea. 



Acranthera, Arn. (Rubiacece.) 



Calycis tubus oblongo-turbinatus, limbus 5-fidus, laciniis linearibus. 

 Corolla tubulosa, intus glabra, extus hirsutissima, ultra medium 

 5-fida, laciniis erectis, spathulatis, retusis, sestivatione valvata plicata. 

 Stamina 5, erecta, basi corollse inserta, ea dimidio breviora ac ejus 

 laciniis alterna : filamenta filiformia subpapillosa : anthers innatse, 

 oblongo-lineares, connectivo apice in mucronem longiusculum ultra 



