fagioli (beans)

I fagioli: Beans are an important part of Italian cooking, especially in Tuscany.

i fagioli cannellini (butter beans)
i fagioli bianchi (white beans or haricot beans) 
i fagioli di Spagna (lit. Spanish beans,  red kidney beans)
i fagioli aduki (adzuki beans)
le fave (broad beans) 
i semi di soia (soya beans) 
i fagioli dall’occhio nero (back eyed beans, black eyed peas) 
i fagioli borlotti (pinto beans) 
i fagioli mung (mung beans) 
i fagioli nani (flageolet beans)

il fagiolo singular

semi (seeds)

I semi: Seeds such as i semi di mostarda (mustard seeds), i semi di carvi (caraway seeds), etc. Also kernels.

il seme singular