ORCHIDACE.E 



H. odonto- sun comes in, January 20-February 10, 1903, Ames 4* Leavitt (1); rich cal- 



petala careous soil in shade of woods, January 26-29, 1903, Ames ^ Leavitt (1); 



rich soil in shaded woods, January 27, 1903, Ames 8f Leavitt (1). — 



Lomas circa de Taco-Taco, October 28, 1904, C. F. Baker (no. 3814) (1). 



MEXICO 



Mirador, November, 1841, Liebman (no. 256) (3). 



H. Purdiei 69. H. Purdiei, Fawcett (| Rendle, in Journ. Bot. 47 : 263 (1909). 



"Type in Herb. Kew. Herba glabra. Caulis erectus, foliatus, 

 vaginis foliorum tectus. Folia lanceolata, tenuia, insigniter reti- 

 culato-ll-15-nervia, acuta, superne minora atque bracteiformia, 

 basi amplexicaulia et in vaginam tubulosam angustata. Bractese 

 lanceolatas, acuminatae, ovario pedicellato breviores. Racemus 

 sublaxus, multiflorus, ambitu oblongus. Flores patuli. Sepala 

 reticulato-3-nervia, venis extus prominentibus; medianum sub- 

 orbiculare, cucullatum, obtusissimum, margine minute denticu- 

 lato; lateralia ovali-falcata, concava, obtusa. Petala indivisa, 

 oblonga, obtusissima, 2-nervia. Labellum lineari-ligulatum, pen- 

 dulum margine revoluto, basim versus utrinque dente parvo 

 instructum, sepalis dimidio longius; calcare tenui, compresso, 

 apicem versus angustato, ovario subduplo longiore; processubus 

 stigmaticis apice crassis; antheras canalibus subduplo longiori- 

 bus, ascendentibus ; antherae acute cristata (in spec. exam.). 



"Plant 4.5 dm. 1. Stem about 3 dm. 1., 3.5 mm. br. Leaves, 

 blade to 8 cm. 1., to 1.9 cm. br. Bracts, lower 1.7 cm. 1. Pedicel 

 about 5 mm. 1. Ovary 1-1.8 cm. 1. Raceme about 12 cm. 1. 

 Sepals, median 8.5 mm. 1., 7.7 mm. br., lateral about 11 mm. 1., 

 nearly 5 mm. br. Spur barely 3 cm. 1. Stigmatic processes about 

 2 mm. 1. ; anther-canals about 3.3 mm. 1. 



*'Hab. — Hollis's Savanna, Clarendon, Pur die! 



"Differs from H. obtusa Lindl., from Brazil and Surinam, in 



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