394 MR. C. C. LACAITA ON THE 
narrowest leaves of all, only 1-2 mm., the upper ones not being dilated at 
the base. Otherwise it resembles var. Column, but differs from true 
angustifolium Lehm. in the darker grey colour of the foliage, the even 
narrower leaves, and the weaker, more hair-like bristles, which are 
spreading, not adpressed. It is confined to the province of Verona, on 
the hills near the lake of Garda, and by the Adige. All the specimens 
seen were collected by Rigo, and are very uniform. 
(D) var. angustifolium mihi = O. angustifolium Lehm. = O. cinereum Sieb. 
(non Schreb.) quoad exsice, ex Apulia. Stem more dwarf; foliage 
ashy or whitish in sicco, owing to the white bristles being stouter and 
more adpressed ; the surface of the leaves, which are 2- 21 mm. wide, 
completely concealed by the almost interlacing asterosetulæ ; corolla 
pale, of a creamy colour, minutely pubescent. But for the presence of 
this fine pubescence the variety would be practically indistinguishable 
from the Cretan form of O. erectum, of which it has the habit. Lehmann 
described his species from Sieber’s exsice. ex Apulia, of which there is 
an example at Mus. Brit. identical with Porta and Rigo’s specimens and 
with those I have myself collected on Mt. Gargano, the only known 
habitat for this precise variety. 
(E) var. crinitum mihi = O. stellulata var. crinita Boiss. herb. in scheda ined. 
= Q. canescens Presl = O. montanum Guss. non. Sibth. et Sm. Peculiar 
to Sicily, where it is the only representative of O. echioides. Presl’s 
name was ill-chosen, for the plant is flavescent rather than canescent, at 
any rate in sicco. As indicated by Boissier’s unpublished name, it is 
more shaggy than other varieties, the stem being thickly covered with 
spreading bristles longer than its diameter. The leaves are completely 
covered by the asterosetule ; the corolla is more pubescent and of a 
deeper yellow than in the others. 
When we come to consider O. echioides B the case is different. There is 
no one particular haplotrichous form that can claim to represent 8 to the 
exclusion of others, for both the synonyms and the geography cover a whole 
group of closely-related species or subspecies that have never yet been 
treated in a convincing manner, not even in the papers of Javorka and Riibel 
and Braun-Blanquet. None of these authors have dealt with the entire 
series and consequently have not faced all the problems. 
We cannot avoid including under 8 at least all the following ; this is not 
the place to discuss their precise relationships :— 
(1) O. Visiani Clem. (1842) = O. calycinum Stev. (1851) from Hungary and 
Lower Austria. (2) O. arenarium Waldst. et Kit. from Hungary, ete. (3) O 
arenarium auct. gall. an Waldst. et Kit.? from the neighbourhood of Maintz and 
from S.E. France. (4) O. raudense Gremli from Switzerland. (5) O. echioides 
Gren, et Godr. et auct. gall. = O. echioides L. subsp. fastioiatum Braun-Bl. from 
