350 



be removed from the ThlaspidecB to the LepidinecB, and it 

 will come very near Hexaptera, differing in the absence of 

 dorsal wings to the valves of the capsule, and in its linear 

 petals. 



HEXAPTERA. Nov. Gen. 



Calycis foliola erecta, basi subaequalia. Petala obovata, un- 

 guiculata, integra. Stam. 6, omnia libera, vel 4 longiora 

 per paria ultra medium unita. Silicida breviter stipitata, 

 stylo stigmateque incrassato Iseviter sulcato terminata, bi- 

 locularis, bivalvis, valvis ad suturas insigniter contractis, 

 scutatis, e stylo demum pendulis, dorso lateribusque late 

 alatis, monospermis. Septum angustissimum, sen obso- 

 letum. Semen obovatum, immarginatum. Cotyledones 

 incumbentes. — Flores albi. 



* Stamina majora per paria ultra medium connexa. 



1. Hexaptera />mwa^/^c?a, [Gill, et Hook.) ; foliis pinnatifidis, 

 caulinis paucis. (Tab. LXXII.) 



Hab. Apud " Quebrada de Rios " in Andibus Chilensibus : 

 prope " Ladera de las Vacas," in valle " Hermosa," et 

 prope ripas fluminis " Tonyan," in valle Tennyanensi 

 Andium versus Mendozam, alt. 10,000 ped. Gillies. 



Radix descendens, subfusiformis, ut videtur, annua. Caulis 

 solitarius, erectus, superne ramosus, teres, pubescenti-pi- 

 losus, parce foliosus. Folia praecipue radicalia, oblonga 

 vel ovalia, profunde pinnatifida, subglabra vel pilosa, 

 nunc etiam hispida, laciniis ovatis lanceolatisve, acutis vel 

 obtusis, integris vel sinuatis, non raro pinnatifido-lobatis, 

 interne in petiolura longum attenuata: caidina sensim 

 minora. Flores corymbosi, demum racemosi, parvi. 

 Calyx tetraphyllus, foliolis ovatis, concavis, dorso (pedi- 

 cellisque) hispidis, erectis, basi aequalibus. Petala calyce 

 duplo longiora, obovata, subunguiculata. Stamina 6, 4 

 longiora filamentis per paria ultra medium connexis : 

 Antherce oblongae. Pistillum : Germen breviter stipitatum, 

 hexapterum : Stylus germinis longitudine: Stigma eras- 

 sum, vertice sulcatum. Fnictus : Silicula, circumscrip- 



