a name which is applied to those kinds of squash which are allowed to mature on the vine, then stored for use in winter. The skin is hard and inedible, while the inside becomes firm and is often superior in flavour to most sorts of summer squash.
The dividing line between summer squash and winter squash thus corresponds to differences in use. It does not correspond to divisions between the four principal botanical species of squash. Nor is it a firm dividing line, because there are some cultivars which can be harvested early as summer squash or kept to become winter squash.
Despite the above, it remains true that virtually all the principal cultivars are either summer or winter. How the winter squashes relate to the principal species is shown in the list below.
Kabocha is a squash which is difficult to categorize. Elizabeth Schneider (1986) explains that the name is both a generic grouping and a more specific marketing name in the USA, applied to:
many strains of Japanese pumpkin and winter squash of both Cucurbita maxima and Cucurbita moschata species. Home Delite, Ebisu, Delica, Hoka, Chirimen, Hyuga, Hoka, and Sweet Mama are all varieties that might be called kabochas in a Japanese or American market.
Schneider adds that, with their flattened drum or turban shapes and deep green skins, they bear some resemblance to Buttercup; and that all have a fine flavour, rich sweetness, and almost fibreless flesh.
Alan Davidson was a distinguished author and publisher, and one of the world's best-known writers on fish and fish cookery. In 1975 he retired early from the diplomatic service—after serving in, among other places, Washington, Egypt, Tunisia, and Laos, where he was British Ambassador—to pursue a fruitful second career as a food historian and food writer extraordinaire. Among his popular books are Seafood of South-East Asia, North Atlantic Seafood, and Mediterranean Seafood. In 2003, shortly before his death, he was awarded the Erasmus Prize for his contribution to European culture.
Schneider, Elizabeth (1986), Uncommon Fruits and Vegetables, New York: Harper & Row.