A stump with a dry leaf both in natural light and under 365 nm ultraviolet (UV-A) blacklight near Krugovaya Alley in Sosnovka Park. Saint Petersburg, Russia, September 23, 2025
 | Круговая аллея, округ Сосновское, Санкт-Петербург, Северо-Западный федеральный округ, 194223, Россия |
Mossy stump with a dry leaf both in natural light and under 365 nm ultraviolet (UV-A) blacklight near Krugovaya Alley in Sosnovka Park. Saint Petersburg, Russia, September 23, 2025
| Круговая аллея, округ Сосновское, Санкт-Петербург, Северо-Западный федеральный округ, 194223, Россия |
Rotting log both in natural light and under 365 nm ultraviolet (UV-A) blacklight near Krugovaya Alley in Sosnovka Park. The intense blue or blue-green glow comes from the wood itself, specifically from lignin and cellulose. The red fluorescence comes from Chlorophyll from algae/moss or Porphyrins from bacteria. Saint Petersburg, Russia, September 23, 2025
| Круговая аллея, округ Сосновское, Санкт-Петербург, Северо-Западный федеральный округ, 194223, Россия |
A detail from "The Last Day of Pompeii" by Karl Brullov (1833) showing the central tragedy of the painting in Russian Museum. Saint Petersburg, Russia, September 24, 2025
A close-up detail from the left-middle section of a huge painting "Phryne at the Festival of Poseidon in Eleusis" (1889) by Henryk Siemiradzki (Polish/Russian, 1843–1902) in Russian Museum. Saint Petersburg, Russia, September 24, 2025
Detail from a painting "The Brazen Serpent" (1841) by Fyodor Bruni (1799–1875) showing the head of a bearded man in agony in Russian Museum. Saint Petersburg, Russia, September 24, 2025
Painting Bayan (1910) by Viktor Vasnetsov (1848–1926) showing a legendary Slavic bard (a "Bayan") playing the gusli (a traditional string instrument) to a group of warriors on a hilltop, in Russian Museum. Saint Petersburg, Russia, September 24, 2025
Painting "Christ and the Woman Taken in Adultery" (1888) by Vasily Polenov (1844–1927) (the right side of the canvas, where the angry crowd, bearded men in robes, is dragging or presenting the frightened woman) in Russian Museum. Saint Petersburg, Russia, September 24, 2025
Main Staircase of the Mikhailovsky Palace designed by the architect Carlo Rossi in the 1820s in Russian Museum. Saint Petersburg, Russia, September 24, 2025
Masses of Sulphur tuft mushrooms (Hypholoma fasciculare) on a stump in a yard at Gavrskaya Street in area of Udelnaya. Saint Petersburg, Russia, September 25, 2025
| 94 к2, проспект Тореза, Удельная, округ Светлановское, Санкт-Петербург, Северо-Западный федеральный округ, 194017, Россия |
Caps of Sulphur tuft mushrooms (Hypholoma fasciculare) on a stump in a yard at Gavrskaya Street in area of Udelnaya. Saint Petersburg, Russia, September 25, 2025
| 15, Гаврская улица, Удельная, округ Светлановское, Санкт-Петербург, Северо-Западный федеральный округ, 194017, Россия |
Grey tooth mushrooms (Phellodon melaleucus) on roadside on Leninskaya Tropa Trail near Dibuny, north-west from Saint Petersburg. Russia, September 25, 2025
| Ленинская тропа, Дибуны, Песочный, Санкт-Петербург, Северо-Западный федеральный округ, 197758, Россия |
Young grey tooth mushrooms (Phellodon melaleucus) in a roadside ditch on Leninskaya Tropa Trail near Dibuny, north-west from Saint Petersburg. Russia, September 25, 2025
| Ленинская тропа, Дибуны, Песочный, Санкт-Петербург, Северо-Западный федеральный округ, 197758, Россия |
Underside of grey tooth mushrooms (Phellodon melaleucus) in a roadside ditch on Leninskaya Tropa Trail near Dibuny, north-west from Saint Petersburg. Russia, September 25, 2025
| Ленинская тропа, Дибуны, Песочный, Санкт-Петербург, Северо-Западный федеральный округ, 197758, Россия |
Aromatic earthfan mushrooms (Sistotrema confluens) in a roadside ditch on Leninskaya Tropa Trail near Dibuny, north-west from Saint Petersburg. Russia, September 25, 2025
| Ленинская тропа, Дибуны, Песочный, Санкт-Петербург, Северо-Западный федеральный округ, 197758, Россия |
Aromatic earthfan mushrooms (Sistotrema confluens) on a side of a roadside ditch on Leninskaya Tropa Trail near Dibuny, north-west from Saint Petersburg. Russia, September 25, 2025
| Ленинская тропа, Дибуны, Песочный, Санкт-Петербург, Северо-Западный федеральный округ, 197758, Россия |
Polypore mushroom Heterobasidion parviporum on Leninskaya Tropa Trail near Dibuny, north-west from Saint Petersburg. Russia, September 25, 2025
| Ленинская тропа, Дибуны, Песочный, Санкт-Петербург, Северо-Западный федеральный округ, 197758, Россия |
Soapy knight mushrooms (Tricholoma saponaceum) on Leninskaya Tropa Trail near Dibuny, north-west from Saint Petersburg. Russia, September 25, 2025
| Ленинская тропа, Дибуны, Песочный, Санкт-Петербург, Северо-Западный федеральный округ, 197758, Россия |
Orange spine mushrooms (Hydnellum aurantiacum)(?) together with mature Coltricia perennis on Leninskaya Tropa Trail near Dibuny, north-west from Saint Petersburg. Russia, September 25, 2025
| Ленинская тропа, Дибуны, Песочный, Санкт-Петербург, Северо-Западный федеральный округ, 197758, Россия |
Mushrooms Pholiota spumosa on Leninskaya Tropa Trail near Dibuny, north-west from Saint Petersburg. Russia, September 25, 2025
| Ленинская тропа, Дибуны, Песочный, Санкт-Петербург, Северо-Западный федеральный округ, 197758, Россия |
Masses of mushrooms Pholiota spumosa on Leninskaya Tropa Trail near Dibuny, north-west from Saint Petersburg. Russia, September 25, 2025
| Ленинская тропа, Дибуны, Песочный, Санкт-Петербург, Северо-Западный федеральный округ, 197758, Россия |
False saffron milkcap mushroom (Lactarius deterrimus, Russian name Ryzhik) on Leninskaya Tropa Trail near Dibuny, north-west from Saint Petersburg. Russia, September 25, 2025
| Ленинская тропа, Дибуны, Песочный, Санкт-Петербург, Северо-Западный федеральный округ, 197758, Россия |
A distinctive Stalinist Neoclassical residential building located at Bolshoy Sampsonievsky Avenue, 108, from a platform of Lanskaya railway station. Saint Petersburg, Russia, September 26, 2025
| Ланская, Сердобольская улица, Выборгская сторона, округ Светлановское, Санкт-Петербург, Северо-Западный федеральный округ, 194156, Россия |
Flat, fleshy, green rosettes with distinctively serrated (toothed) leaf margins of Caucasian Stonecrop (Phedimus spurius, formerly known as Sedum spurium) growing low to the ground on a rocky/sandy shore near St. Petersburg. Russia, September 26, 2025
| 9, Приморское шоссе, Раздельная, Лисий Нос, Санкт-Петербург, Северо-Западный федеральный округ, 189645, Россия |
Golden, slimy scalycap mushrooms Pholiota limonella in a state nature reserve "North Shore of Neva Gulf" (Zakaznik Severnoe Poberezhye Nevskoy Guby) on the northern coast of the Gulf of Finland, near Olgino. Saint Petersburg, Russia, September 26, 2025
| Приморское шоссе, Раздельная, Лисий Нос, Санкт-Петербург, Северо-Западный федеральный округ, 189645, Россия |
Underside of scalycap mushrooms Pholiota limonella in a state nature reserve "North Shore of Neva Gulf" (Zakaznik Severnoe Poberezhye Nevskoy Guby) near Olgino. Saint Petersburg, Russia, September 26, 2025
| Приморское шоссе, Раздельная, Лисий Нос, Санкт-Петербург, Северо-Западный федеральный округ, 189645, Россия |
