Périgord Black Truffle (Tuber melanosporum)
Is grown predominantly in France although is also found in Italy, Spain and in smaller quantities in Slovenia and Croatia, along with a growing market in New Zealand and Tasmania, Australia. A highly prized truffle known for its aromatic properties, this truffle can frequently command a price of NZ $3,500 per kg. Click here for photo.
Bianchetto or whitish truffle (Tuber borchii)
Iis also known as the Spring Truffle and is predominantly grown in Tuscany, Romagna and Marche, Italy. While providing an excellent flavour it does not command the same price as the other well-known white truffle Tuber magnatum. Click here for photo.
Italian White Truffle (Tuber magnatum)
From the Piedmont region of Northern Italy, this truffle grows with hazels, oak, poplar and beech trees. It fruits in autumn, is highly aromatic and can produce truffle up to 500g in weight, although they are usually much smaller. The highest priced of all truffles, prices can reach NZ $4-8,000 per kg with the record price being paid in 2007 of NZ $660,000 by a Macau casino owner for a 1.5kg truffle.
Click here for photo.
Chinese Truffle (Tuber sinensis or Tuber indicum)
Is more common and is considered to have a bland taste and chewy texture compared to the black truffle. Because microscopic examination or DNA typing is needed to differentiate it from Tuber melanosporum, the dubious practice of putting some of the Tuber melanosporum into the Chinese truffle and selling it at a high price has occurred. Click here for photo.
Black Summer Truffle (Tuber aestivum/unicinatum)
Is harvested between June and November and grows extremely well in Northern Italy, central & eastern Europe and even the United Kingdom. While it does not have as strong an aroma as the winter black truffle, is still valued and can command up to $1,900 NZD per kg. Click here for photo.
Winter Truffle (Tuber brumale)
Is similar in appearance to the Périgord truffle but does not have the same desirable flavour. There is a concern that this species may compete with the Périgord in young nursery seedlings if care is not taken to ensure true-to-type Tuber melanosporum infection on roots. Click here for photo.