| Taxon | Collector | Location | Type Status | Barcode | |
|---|---|---|---|---|---|
| Macrocentrum cristatum var. microphyllum Cogn. | B. Maguire 23085 with D. B. Fanshawe, 29 Apr 1944 | Guyana. Potaro-Siparuni. Potaro River Gorge, trail from Tukeit to Kaiatuk. | |||
| Macrocentrum cristatum var. microphyllum Cogn. | G. S. Jenman 7406 Oct 1898 | Guyana. Potaro-Siparuni. Pakatuk Falls, Potaro River. | |||
| Macrocentrum cristatum var. microphyllum Cogn. | G. S. Jenman 978 Sep 1881 - Oct 1881 | Guyana. Potaro-Siparuni. Kaieteur, below, Potaro River. | |||
| Macrocentrum cristatum var. microphyllum Cogn. | C. P. G. Feuillet 1614 9 Mar 1985 | Guyana. Upper Demerara-Berbice. Mabura Hill, limite de Mazaruni-Potaro and W. Demerara Dist. |
