Estimation of Pulmonaria mollis and P. obscura (Boraginaceae) Raw Material Stocks

The resource potential of two wild-growing Pulmonaria species (P. mollis Wulf ex Horn. and P. obscura Dumort.) was studied. The raw material reserves (generative shoots) were determined for the cenopopulations of P. mollis in the Novosibirsk Region and Altai Territory, and P. obscura — in the Yaroslavl Region and Perm Territory. The maximum stock of P. obscura raw materials was determined in light birch forests (103 kg ha¯1) and P. mollis — in mixed-grass and steppe meadows between birch groves and along mixed forest edges (~ 240—300 kg ha¯1), and the minimum stock — in pine and birch forests (~ 80—130 kg ha¯1). Using the example of four regions of the Russian Federation, the possible harvesting volumes of P. mollis and P. obscura, two source plants of a promising Pulmonariae herba raw material, were determined. The calculated yield characteristics indicate that the generative shoots of P. mollis and P. obscura are suitable for commercial harvesting.