186 Floristik und Systematik der Phanerogamen. 



plaiits belong to relatively few species and only two new plants {Pani- 

 cum nemostachyum Bail. and Hibbertia Bennettü Bail.^ have been found 

 in 7 years work. The general nature of the irees varies with the soil ; 

 lange trees Eucalypts, (Grevillea gibbosa) grow on tiie red soil of the 

 stanniniferoiis chlorite rock, whilst the granite ridges bear stunted trees 

 and scanty herbage {Arundinella nepalensis, Polycarpaea spirostyles etc.) 

 The principal climbers are Tecoma australis and Loranthus-spec'ies. 

 The flora of the district can at once be distinguished from that of 

 Southern Queensland by the presence of such plants as Careya 

 australis. A list of some of the more common plants is appended. 



F. E. Fritsch. 



Brown, R. N. Rudmose, The Botany of Cough Island. — 

 I. Phanerogams and Ferns. (Journal of the Linnean 

 Society. Vol. XXX VH. No. 259. 1905. p. 238—250. 

 Plates 7—9 and 1 woodcut.) 



Cough Island lies, in the mid South Atlantic (lat. 40', 20' S., 

 long. 9", 56^ 30" W.) and is a small Island some 7 or 8 miles long by 

 3 or 4 miles broad ; it was visited on the return journey of the Scottish 

 National Antarctic Expedition. From the highest summit to the waters 

 edge the Island is clothed with Vegetation and even the steepest preci- 

 pices have their covering of moss. Above high water Riimex fnitescens 

 and wild celery grow in luxuriant profusion and here and there on the 

 hillsides down to sea level there are large tufts of Spartinia arundina- 

 cea\ the only sward-forming ;„grass" is a species of Scirpiis. The cha- 

 racteristic tree of the Tristan daCunha group {Phylica nitida) is 

 well represented, being most plentiful above 100 feet; the branches are 

 thickly encrusted with lichens. 



Tree-ferns grow in the rieh ground beside the stream. The list of 

 plants includes 17 Phanerogams and 10 Ferns, four of the (ormer being 

 very probably introduced. One species (Hydrocotyle leucocephala) is 

 South American, two are endemic {Cotiila goughensis n. sp. and 

 Aspleniiim alvarezense n. sp.), while the remainder are recorded from 

 Tristan da Cunha; of these latter four (or six) are endemic of the 

 Tristan da Cunha group. 



Cotula goughensis is near C. coronifolia, but differs in having 

 broad bracts and a smaller inflorescence. Aspleniiim alvarezense is 

 closely allied to A. Ruta-miiraria, from which it chiefly differs in the 

 entire pinnules. F. E. Fritsch. 



GuiGNARD, L., Quelques observations sur le Cordyla 

 africana. (Journ. de Bot. 1905. No. 6. p. 109—124.) 



Le genre Cordyla, cree par Loureiro pour une Le'giimineuse 

 arborescente africaine, a ete ränge par De Candolle dans les Ce'sal- 

 piniees, par Bentham et Hook er dans les Swartzices classees elles- 

 memes dans les Papilionacdes, par Bai Hon dans les Swartzides, qu'il 

 appelle Tounatees et qu'il remet dans les Cesalpini^es. 



Comme les Daniellia, le Cordyla africana est interessant par hi 

 presence d'organes secreteurs dans ses divers organes. La tige, pour- 

 vue d'un liege epais, possede dans son ecorce primaire des canaux 

 secreteurs schizogenes dont le contenu oleo-resineux se colore en rouge 

 vif par l'orcanette acetique. D'autres organes secreteurs sont representes 

 par des groupes de cellules contenant un latex tannifere qui brunit en 

 s'oxydant ä l'air; on les observe dans l'ecorce, ä l'interieur et en dehors 

 de l'anneau sclereux et au pourtour de la moelle. Les poches secre- 

 trices ä oleo-resine existent aussi dans le limbe. Dans la paroi du 

 fruit, qui est une baie, existent ä la fois des poches secretrices et des 

 cellules tanniferes. 



La graine renferme un embryon ä cotyledons charnus, chaque coty- 

 l^don Präsentant deux lobes descendants au-dessous de son attache, de 



