134 PATAGONIAN EXPEDITIONS I BOTANY. 



SISYMBRIUM Linn. 



P. 430 : The type of species Sisymbrium andinum Phil, is not found in 

 Patagonia. The plant so named in p. 430 is a variety, thus : S. andinum 

 Phil. var. pubescens Gilg et Muschler (syn. S. andinum Macl. non Phil.). 

 Description as p. 430, No. 2. Occurs in Patagonia, by Rio St. Cruz, and 

 Gulf of St. George. 



P. 431 : Insert at top. The name Sisymbrium magellanicum (Pers.) 

 Hook. f. has precedence of S. maclovianum Gaud., and of S. fuegianum 

 Speg., described on p. 431, No. 4. Other synonyms are Schizopetalum 

 fuegianum (?) Speg., Brassica magellanica Persoon, Arabis magellanica 

 Dusen. It occurs in Fuegia, Magellan, S. Patagonia, in upper valley of 

 Rio Gallegos, in the forest district of Lago Argentine, by Lago Viedma, by 

 borders of woods at 500-900 m.; and near woods by Rio Fossiles at 950 m. 



Add Macl., p. 431 : 



S. SAGITTATUM Hook, et Arn. Macl.. p. 449. 

 (Sub Sophia sagittata Hook, et Arn.) 



The species with its numerous forms, by Macloskie brought to the genus 

 Sophia, has its natural place amongst the species of the genus Sisymbrium. 



S. SIMPSONI Phil. 



Perennial, glabrous, leaves oval, serrate, truncate, 2-3 coarse teeth, the 

 lower petioled, the upper sessile, sepals obtuse, half as long as petals. 

 Silicles linear, attenuate both ways, hairy, exceeding the peduncle. 



In W. Patagon., by Rio Aysen; rather rare. 



P. 431 : Delete Sisymbrium tehuelches Speg. It is only a synonym of 

 Streptanthus tehuelches (Speg.) Gilg & Musch. 



Delete Sisymbrium sophia L., as it belongs to genus Descurainea, p. 447. 



THELYPODIUM Endl. 



Add Macl., p. 432, after line 7 : 



Pods teretish, valves i-nerved, seeds in one row, oblong, marginless; 

 cotyledons obliquely incumbent ; flowers large, purplish to white. 



T. FLEXICAULE (Dus.) Desv. Gilg & Musch. 



Sepals narrow, equal at base; anthers linear, curved. Petals with 

 narrow claw, flat, much exceeding the sepals. 



