Microbiology A series of ulcers in lower extremities in sub-Himalayan area is often caused by: A Trichophyton rubrum B Pseudallescheria boydii C Cladosporium species D Sporothrix schenckii 💡 Explanation A series of ulcers in lower extremities in sub-Himalayan area is often caused by: ✓ Correct Answer: D. Sporothrix schenckii