Tropical sawgill

What it is

Lentinus squarrosulus is a wood-decay mushroom that grows on decaying wood in tropical forests. The sources reviewed describe it as valued both as food and as medicine in the places where it grows, including eastern Nigeria.

The sources reviewed do not describe the appearance or the cooking texture of the mushroom in detail, so this page does not give them.

Wild gathering and its limits

In the wild the mushroom is gathered, and the sources warn that it is at risk of becoming scarce because of habitat destruction. The 2026 Nigerian study presents cultivation partly as a way to reduce reliance on picking wild mushrooms, and it notes that misidentification can lead to mushroom poisoning. That is a reason for caution with wild collection, and this page does not treat the wild mushroom as safe to pick.

The record for this species is mainly from the wild harvest in Nigeria and from a few African research reports. The sources do not give a documented food tradition across the wider region, so this page does not claim one.

How it is grown

A 2026 Nigerian study grew the fungus on locally available sawdust, and Treculia africana (African breadfruit) sawdust gave the best growth among the species tested. The study suggests that the mushroom can grow on sawdust from several wood species. A Cameroon study from the University of Dschang reports production under farm conditions, mainly on wood-based substrate.

A 2024 review of 93 studies names Lentinus squarrosulus, Pleurotus ostreatus and Pleurotus tuber-regium as the most common species cultivated in tropical Africa, and it notes that cultivation practices still need to be optimised. The sources do not give temperatures, yields or timings for this species, so this page gives none.

Commercial status is early. The sources say that further work is needed before widespread commercial adoption, and the lead researcher in the Nigerian study notes that profitability may be hard to achieve depending on the biological efficiency of the process.

Cooking and eating

The sources reviewed do not describe the way the mushroom is cooked or served in the places where it is eaten, so this page gives no recipe or cooking method. A preparation that uses it should carry its own method and sources.

The mushroom is a food mushroom in its wild and cultivated forms, according to the sources. The sources do not describe it as a starter culture or a fermentation organism.

Safety and identification

The 2026 Nigerian study notes that misidentification of wild mushrooms can cause poisoning. This page gives no identification or edibility verdict for a specimen. A wild tropical sawgill should be identified by an expert before it is eaten, and a buyer should look for cultivated product that names the species.

The sources do not give a storage life, an allergen profile or a preparation for safety, so this page gives none.

Open questions

The profitability of cultivation, the biological efficiency on different substrates, and the cooking traditions all need primary sources. The next research pass should read the 2024 review and the Cameroon study in full.