Henry Hobhouse

Do not be put off by the silly sub-title: this is an admirable book on several levels. Botanical origins; plant-hunting; the arrival of plants in England; hybridisation, and the American connections. There is much history, including that of great gardens like Exbury. All is here, plus some gorgeous illustrations, including one of Marion Dorn, designer of rhododendron-inspired fabrics, doing her bit to mitigate the rigours of postwar Crippsean austerity in 1947. Rhododendrons (now including azaleas) are calcifuge plants, happy in lime-free soil; hence keen cultivation in the Surrey Alps, in sour patches elsewhere and in peat and sand in the Celtic fringe.

Cocoa beans were 'found' by Europeans on Columbus's fourth, final and failed voyage (1502). The beans were sufficiently rare to be used as currency and the beverage made from them was called 'Food of the Gods' and only served to Amerindian grandees like Montezuma - in his case, in gold cups. The liquid was laced, not with sugar, then unknown in the New World, but with capsicum and vanilla, both unknown in Europe, but Europeans soon preferred to make the drink with sugar, and, after a century, with Eastern spices, including cinnamon, cloves and nutmeg. In the early White's, then a Whig club, the drink was made with milk and eggs, beaten into a froth. Dr (later a baronet) Hans Sloane was a collector whose treasures were left to the nation and became the British Museum.

FAUNA BRITANNICAby Duff Hart-DavisWeidenfeld, £30, pp. 415, ISBN 0297825321 Time was that this sort of confusion did not occur. In the days when 'publishing was a business for gentlemen', the aforesaid gents would meet for luncheon ('Your Club or mine?'); they would agree that they would not each publish a book with the same title at the same time. If unable to agree as to who would concede, they would probably toss a coin, winner to have the title. In these more commercial days, with plenty of regulations against collusion and combination, we have two apparently similar books with the same title purporting to meet the same demand. And do they?