| Classification | Rubiaceae: Sommera | 
| Harvard University Herbaria Barcode(s) | 00359505 | 
| Type Status | Isotype | 
| Collector | P. H. Allen | 
| Collector number | 5431 | 
| Country | Costa Rica | 
| State | Puntarenas | 
| Geography | North America: Central America (Region): Costa Rica: Puntarenas | 
| Locality | Canton de Osa. Río Esquinas. Vicinity of Kil. 42 | 
| Date Collected | 1949-12-08 | 
| Elevation | 30 m | 
| Verbatim Elevation | 100 ft. | 
| Habitat | along fast flowing streams | 
| Container | Plants of Costa Rica | 
| Frequency | Locally frequent | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/8490150b-86fc-4e85-b352-43814aa3a0eb | 
| Harvard University Herbaria Barcode | 00359505 | 
| Herbarium | A | 
| Previous ownership | Collected under the auspices of the Research Department, United Fruit company | 
| Family | Rubiaceae | 
| Type Status | Isotype | 
| Isotype of | Sommera rivularis L. O. Williams | 
| Verified by | Santamaria, Daniel | 
| Date Determined | 2013-06-07 | 
| Determination Remarks | [filed under] | 
| Taxon Reference | (for  Sommera rivularis L. O. Williams) Phytologia 1973. 26(2): 125. | 
| Family | Rubiaceae | 
| Determination | Sommera grandis (Bartling ex de Candolle) Standley | 
| Determination Remarks | [label name] | 
| Sex | Female | 
| Phenology | Flower | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |