MR. BENTHAM ON LOGANIACEJ3. 85 



I have mentioned but two Gardnerias, although four are de- 

 scribed; but this has been done chiefly on phytogeographical 

 grounds. On a careful comparison of a considerable number of 

 specimens, I can find no difference between the Nilgherry G, Wal- 

 lichiana and the original G. ovata from Khasiya ; and a specimen 

 communicated to me by the Leyden Museum of the G. nutans, 

 Sieb. et Zucc, from Japan, agrees in every respect with the G. 

 angustifolia, which is so abundant in Sikhim, Nepal, and Khasiya. 



24. Pagahea, Aubl. 



The ovary and fruit of this genus have been hitherto but little 

 known. The seeds of Aublet's species, the only one as yet pub- 

 lished, had not been described at the time I determined Schom- 

 burgk's Loganiacece ; and, misled by fruits apparently nearly ripe, 

 but filled with a fleshy pulp which had become granulated by 

 drying, I totally misunderstood their structure. I have conse- 

 quently misled DeCandolle also, who, in the ' Prodromus,' copied 

 the character I had given, in contradiction to the older but more 

 correct one of Jussieu. Mr. Spruce's labours have now supplied 

 us not only with ripe seeds of the old P. guianensis, but also with 

 fine specimens, in various states, of three other very distinct new 

 species, from whence I am now enabled to complete the history of 

 the genus. 



The flowers, like those of many Buhiacece, have a tendency to 

 become polygamous, by the abortion of the female organs in some 

 flowers, and occasionally of the anthers in others. The calyx, 

 corolla and anthers are correctly described in the ' Prodromus,' 

 except that in one species the chaff-like hairs which line the lobes 

 of the corolla are exceedingly short. The ovary, in many speci- 

 mens of P. guianensis, and occasionally also in the other species, 

 is short and fleshy, with two very small cells containing each a 

 minute abortive ovule, and the style is then very short, usually 

 divided to the base. "Where the ovary is perfect, which I have 

 seldom had occasion to observe in the common P. guianensis, it is 

 much less fleshy, completely divided into two cells with one ovule 

 in each, erect from the base, precisely as in Psycliotria. The style 

 is then elongated, divided much below the middle in P. guianensis, 

 but less so in the others. The fruit is a greenish or black berry, 

 or rather drupe, containing two crustaceous, almost bony pyrenes, 

 with a flatfish inner face and convex back. Each contains a single 

 erect seed with a thin testa adhering to a cartilaginous albumen, 

 very much ruminated, as in Gruniilea. The embryo is small, 



