331 



P. coriacea. Lagdsca^ Gen. et Sp. nov. Diagn. p. 13. n. 163. 



Hab. Santa Madre, Ceiio del Polcina, Los Impossibles et 

 aliis locis Andium Chilensium, intra Mendozam et Chile, 

 alt. 9000 ad 10,000 ped. Gillies. 



Radix longe descendens, crassiuscula, sublignosa, perennis. 

 Folia omnia radicalia, longe petiolata, glaberrima, rotun- 

 data, etiam subcordata, frequenter subcuneata, radiatim 

 nervosa, coriacea, glauco-viridia, margine superiore prae- 

 cipue crenato-dentata; petiolo gracili non raro purpur- 

 ascente, basi vaginato, vagina brevi. Scapi radicales 

 omnino apliylli, primum foliis breviores, demum valde 

 elongati, spithamaei. Umhella terminalis, solitaria, involu- 

 cro amplo, monophyllo, hemisphaerico, membranaceo, den- 

 tato, venoso, inferne cincta. Pedicelli numerosi. Flores 

 in capitulum hemisphaericum congesti, plurimi abortivi. 

 Calyx e dentibus majusculis 5, persistentibiis. Petala 5, 

 erecto-patentia, concava, Integra, acutiuscula, vix apice in- 

 curva, intus linea media longitudinali elevata. Fructus 

 oblongus, prismatico-tetragonus, angulis obtusis. 



I am not aware that any figure exists of this singular and 

 very beautiful genus of Umbelliferous plants; and indeed so 

 rare is the work above referred to, in which its name and 

 character are published, that I have not been able to refer to 

 it, and I rely upon Roemer and Schultes for the correctness 

 of the synonym. The size of the plant is liable to great 

 variation, and still more is the form of its leaves, for though 

 the greater number of them are cuneate at the base, others 

 are almost exactly cordate. The general colour is a pale 

 glaucous green, but some specimens are beautifully tinged 

 with purple, especially in their petioles. 



Tab. LXVI. Fig. 1, Fertile flower. Fig. 2, Fruit. Fig. 3, 

 Section of a carpel : — magnified. 



7. ASTERISCIUM. Cham, et Schlecht. 



Cat. margo dentibus 5, majusculis. Petala intus medio linea 

 longitudinali, apice incurva, dorso tuberculo carnoso. 



