Plants Collected in Paraguay. 201 



Hyptis gracilipes, Bdttoii, n. sp. 



Erect, slender, 35 cm. or more high, much branched, the stems and branches 

 puberulent. Leaves oblong, acute at the apex, narrowed at the base, serru- 

 late or the upper entire, pubescent beneath, puberulent above, the upper 

 1.5-2 cm. long; lower leaves not seen; branches of the panicle slender, 

 elongated; pedicels 1-flowered, filiform, 1^-2 cm. long ; flowers minute, the 

 corolla tube apparently not exceeding the calyx ; calyx campanulate, minutely 

 puberulent, reticulate veined, at length 2.5 mm. long, its teeth ovate, obtuse; 

 nutlets oblong, smooth. 



Near Asuncion (lU a). Related to H. Salzmanni, Benth. May. 



Hyptis lappacea, Benth., Lab., 103. 



Asuncion (^5 b); Gran Chaco (585). November-February. 



Stem simple, square, strict, rough, 4-6 dm. high. Leaves oppo- 

 site, lanceolate, hispid, irregularly serrate, acuminate at both ends, 

 petiolate, 6-12 cm. long, 8-20 mm. broad. Internodes ^-10 cm. 

 long. Flowers white, in solitary, globular heads 8-12 mm. in 

 diameter, on peduncles 5-20 mm. long, axillary below, glomerate 

 above. Bracts lanceolate, acuminate, hispidulous, equalling the 

 head. Calyx lobes rough-aw^ned. The numerous heads have a 

 very burr-like aspect. 



Hyptis spicata, Poit., Ann. Mus., vii, 474. 



Asuncion (48 and VH). November-May. 



Much more slender than no. 75 b, the heads very small and 

 arranged racemosely at the tops of the stems and branches, on 

 capillary peduncles 2-4 mm. long. 



Hyptis suaveolens, Poit., 1. c, 472. 



Asuncion (368). November. 



Stems square, the angles armed with minute downwardly hooked 

 prickles, growing 4 or 5 dm. high. Leaves rough with minute 

 hirsute hairs, ovate, acute, serrate, cuneate at base, on petioles 1-2 

 cm. long. Flowers in small axillary heads, the corolla small, pur- 

 ple. Open grounds. 



Hyptis vestita, Benth., Lab., 114. 



Caballero (592). January. = Balansa 9t8. 

 Whole plant covered with a white or tawny, scurfy tomentum. 

 Flowers in close terminal spikes. Corolla purple. Stem 4-6 dm. 



