Harvard University Herbaria & Libraries

Asteraceae
GH: 01236403 Artemisia campestris Linnaeus Switzerland: Valle Rhone C. J. Mayer 1904-9-3
Droseraceae
GH: 01973815 Drosera anglica Hudson Germany: Bavaria München [Munich]. C. J. Mayer 1899-8
Orchidaceae
GH: 01951495 Anacamptis pyramidalis (Linnaeus) Richard Italy: [Pometta] C. J. Mayer 1904-5-21
GH: 01950888 Dactylorhiza latifolia (Linnaeus) Soó Austria: Walchsee, Tivolia [Tivoli] C. J. Mayer 1905-6-24
AMES: 01948881 Herminium monorchis (Linnaeus) R. Brown Germany: Bavaria [illegible] C. J. Mayer 1902-7-15
GH: 01952755 Ophrys arachnites Lamarck Italy: Porretta C. J. Mayer 1904-5-21
GH: 01952810 Ophrys aranifera Hudson Germany: In practis pr. Mering Bayeru. C. J. Mayer 1903-6-16
GH: 01952912 Ophrys fusca Link Italy: Apenniuo bolognese [Bologna] C. J. Mayer 1905-5-27
AMES: 01951649 Orchis coriophora Linnaeus Germany: Bavaria Aneinem Wiesenhang le Anzing C. J. Mayer 1902-6-22
GH: 01951873 Orchis mascula (Linnaeus) Linnaeus Austria: pr. [Niederudorf]. Tivolia. C. J. Mayer 1906-6-2
GH: 01948638 Platanthera chlorantha Custer ex Reichenbach Italy: Emilia-Romagna Monte della [Croce] C. J. Mayer 1904-5-20
AMES: 01951204 Serapias lingua Linnaeus Italy: Ligurien [Liguria]: Auden Abhangen des Monte... C. J. Mayer 1901-5-24