150 MR. J. G. BAKEB ON ALOHnS-E AND TUCCOIDE^!. 



logue ' of 1817 and ' Hortus Dyckensis ' of 1831 contain many- 

 notes upon them of great value ; but these are almost entirely 

 superseded by his valuable monograph in quarto, which came out 

 in parts from time to time from 1836 to 1863, and contains full 

 descriptions and coloured figures of 150 forms, which represent 

 about 120 species as here understood. Since the time of this 

 great work a large number of new Cape species have been dis- 

 covered and imported, mainly by Mr. Thos. Cooper of Kedhill, 

 who travelled through the Colony from 1858 to 1862, collecting 

 for the late Mr. "Wilson Saunders and the Royal Horticultural 

 Society. Several of Mr. Cooper's novelties have been figured in 

 the ' Botanical Magazine ' and ' Refugiuni ;' but there are several 

 others which have flowered which have not yet been figured, and 

 others which we know as yet only in an undeveloped condition. 

 Very few of the Cape species which have ever been imported have 

 been lost ; so that there are few groups of which a larger propor- 

 tion of the known species are in cultivation in our gardens at the 

 present time. An Aloe has long been known in Abyssinia ; and 

 the explorations of late years have shown that there are a consi- 

 derable number of endemic species in the highlands of Tropical 

 Africa. Welwitsch in Angola found several true Aloes and one 

 Hauorthia. Sehimper has discovered three or four additional 

 species in Abyssinia ; Schweinfurth two or three in the very heart 

 of the continent ; and others have been gathered by Barter in 

 Upper Guinea, Kirk in Zambesi-land, and Balfour in Rodriguez ; 

 and no doubt the collectors of the future will add to the muster- 

 roll materially. Of these Tropical- African species it is only those 

 from Abyssinia that are known in cultivation. The new ones 

 have been figured and fully described recently by Todaro in his 

 ' Hortus Botanicus Panormitanus.' Several Arabian species im- 

 perfectly described by Forskahl in 1775 have not been refound 

 and have never been characterized so that they can be properly 

 classified. And there is a species in thejsland of Socotra, which 

 appears to be endemic, of which the flower is still unknown. My 

 descriptions were mainly made in 1872 from the living specimens 

 in the Kew collection. Mr. Wilson Saunders accumulated a fine 

 collection at Reigate which is now dispersed. The most exten- 

 sive private collection in England at the present time is that of 

 Mr. J. T. Peacock, of Hammersmith. A considerable portion of 

 this has been for the last year liberally lent by him for exhibition 

 at Kew, and has been placed, along with a series of Cactuses and 



