| Cryptantha cycloptera (Greene) GreenePittonia 1: 120. 1887 | 
|  Pronunciation/Pronunciación: | Cryp-tán-tha cy-clóp-te-ra | 
| Etymology/Etimología: | "ring/circle wing," in reference to the wing encircling the nutlet body | 
| Synonyms/Sinónimos: | Krynitzkia cycloptera Greene Bull. Calif. Acad. Sci. 1: 207. 1884. (Basionym) Cryptantha pterocarya (Torrey) Greene var. cycloptera (Greene) J. F. MacBride, Contr. Gray Herb. 48: 44. 1916. | 
| 
          Type/Tipo:  | Cyrus Guernsey Pringle s.n., 15 April 1884. Hills near Tucson, Pima Co., Arizona.(CAS202=CAS0006884) | 
|    Nutlets homomorphic with all four nutlets winged ................................................................... C. cycloptera forma cycloptera | 
 
 
|   TYPE SPECIMEN Cryptantha cycloptera (CAS 202, barcode 0006884)  TYPE SPECIMEN Cryptantha cycloptera (CAS 202, barcode 0006884) Hills near Tucson, Pima Co., Arizona, USA. Approximate locality: 32.3 N 111.0 W 15 April 1884. Cyrus Guernsey Pringle s.n. |