20 Dr. W. Arnott on some new or rare Indian Plants, 



with the sides two ridges^ entirely immersed, betw^een which 

 are found the folds of the dorsal sinus. 



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

 A, Miinsteri, 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 estabhshes 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. Anthera 5, lineares, 

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

 culis multiovulatis. iS/yZ«5filiformis, stamina longe super ans. 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. 



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

 poll, longi. Folia, \\ — 2 poll, longa, opposita, longiuscule petiolata, 

 oblongO'lanceolata, integerrima, supra viridia, parcius pilosa, suhtus 

 pallida. Stipulse interpetiolares, late ovatce, acutce, membranaceee. 

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

 bracteis duabus stipulis subsimilibus stipati. 



1. S. hirsutum. Am. 



Hab. in insula Ceylon. 



This genus may be placed near Sabicea, 



AcRANTHERA, Am. [Rubiaccce.) 

 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 coroUse inserta, ea dimidio breviora ac ejus 

 laciniis alterna : filamenta filiformia subpapillosa : antherce innatae, 

 oblongo- linen res, connective apice in mucronem longiusculum ultra 



