Type: Moore 51 17 (holotype, US; isotype, BH), steep grassy slopes and narrow ravine with open pine woods and scattered oaks on granite soil at km 339-40 between Acahuizotla and Agua del Obispo on the highway to Acapulco, 900 m alt, Guerrero, Mexico, 30 Sep 1-4..49.
8-237
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