*Penicillium idahoense Paden, Mycopathol. Mycol. Appl. 43: 259, 1971 ≡ Eupenicillium idahoense Paden, Mycopathol. Mycol. appl. 43: 259, 1971. [MB319275]. — type: UVIC JWP 66-32. ex-type: CBS 341.68 = NRRL 5274 = ATCC 22055 = FRR 881 = IMI 148393. sect Cinnamopurpurea. ITS barcode: KC411747 (alternative markers: BenA = EF626953; CaM = EF626954; RPB2 = JN121499).
*Penicillium improvisum Visagie, Malloch & Seifert, Persoonia 36: 256, 2016. [MB815769]. — type: DAOM 65768. ex-type: DAOMC 250547 = CBS 140994 = KAS 2386 = W 156. sect Aspergilloides. ITS barcode: KT887867 (alternative markers: BenA = KT887828; CaM = KT887789; RPB2 = n.a.).
*Penicillium incoloratum L.Q. Huang & Z.T. Qi, Acta Mycol. Sin. 13: 264, 1994. [MB363421]. — type: HMAS 65949. ex-type: CBS 101753 = AS 3.4672. sect Cinnamopurpurea. ITS barcode: KJ834508 (alternative markers: BenA = KJ834457; CaM = KJ866984; RPB2 = JN406651).
*Penicillium indicum D.K. Sandhu & R.S. Sandhu, Can. J. Bot. 41: 1273, 1963. [MB335735]. — type: New Delhi-12. ex-type: CBS 115.63 = NRRL 3387 = ATCC 18324 = FRR 3387 = IFO 31744 = IMI 166620. sect Charlesia. ITS barcode: AY742699 (alternative markers: BenA = EU427263; CaM = AY741744; RPB2 = JN406640).
*Penicillium infra-aurantiacum Visagie, Houbraken & K. Jacobs, Stud. Mycol. 78: 426, 2014. [MB809966]. — type: CBS H-21880. ex-type: CBS 137747 = DTO 183-C3 = CV 1518 = DAOM 241145. sect Aspergilloides. ITS barcode: KM189684 (alternative markers: BenA = KM088930; CaM = KM089317; RPB2 = KM089704).
*Penicillium infrabuccalum Visagie, David Clark & Seifert, Persoonia 36: 275, 2016. [MB815782]. — type: DAOM 695769. ex-type: DAOMC 250537 = CBS 140983 = NBSM-6-2 = W 475 = KAS 2181. sect Lanata-Divaricata. ITS barcode: KT887856 (alternative markers: BenA = KT887817; CaM = KT887778; RPB2 = n.a.).
*Penicillium infrapurpureum Visagie, Seifert & Samson, Stud. Mycol. 78: 116, 2014. [MB809181]. — type: CBS H-21801. ex-type: CBS 138219 = DTO 235F6. sect Cinnamopurpurea. ITS barcode: KJ775679 (alternative markers: BenA = KJ775172; CaM = KJ775406; RPB2 = n.a.).
*Penicillium inusitatum D.B. Scott, Mycopathol. Mycol. Appl. 36: 20, 1968 ≡ Eupenicillium inusitatum D.B. Scott, Mycopathol. Mycol. Appl. 36: 20, 1968. [MB335736]. — type: CBS 351.67. ex-type: CBS 351.67 = ATCC 18622 = CSIR 1096 = FRR 1163 = IMI 136214 = NRRL 5810. sect Fracta. ITS barcode: AF033431 (alternative markers: BenA = KJ834458; CaM = n.a.; RPB2 = JN121503).
*Penicillium isariiforme Stolk & J.A. Mey., Trans. Brit. Mycol. Soc. 40: 187, 1957. [MB302403]. — type: IMI 60371. ex-type: CBS 247.56 = ATCC 18425 = CCRC 31699 = IFO 6393 = IHEM 4376 = IMI 060371 = LSHBBB308 = MUCL 31191 = MUCL 31323 = NRRL 2638 = QM 1897. sect Ochrosalmonea. ITS barcode: AF454077 (alternative markers: BenA = KJ834459; CaM = n.a.; RPB2 = JN121470).
*Penicillium italicum Wehmer, Hedwigia 33: 211, 1894. [MB162660]. — type: CBS 339.48. ex-type: CBS 339.48 = ATCC 10454 = DSM2754 = FRR 983 = IBT 23029 = IMI 039760 = MUCL 15608 = NRRL 983 = QM 7572. sect Penicillium. ITS barcode: KJ834509 (alternative markers: BenA = AY674398; CaM = DQ911135; RPB2 = JN121496).