476 CRE VICHON. 
during his stay in the Channel Islands in 1838. In the preface to 
the Alora Sarnica he gives a list of the twenty flowering plants and 
two ferns which he found growing on ‘a conical rocky mound called 
Crevichon, which is connected with Jethou at low water.’ The 
author evidently considered this a rather remarkable list for so 
diminutive an islet, but it was certainly not a full and complete one, 
as on my visit to Crevichon in 1890 I noted thirty-two flowering 
plants and six ferns, of which more than half were additions to the 
catalogue in the Flora Sarnira: so that at present we have a record 
of thirty-nine phanerogams and six ferns for this curious little beacon- 
crowned rock. The number of ferns is particularly noteworthy, 
considering their rarity on the main island of Jethou, and it should 
be mentioned that two or three Crevichon plants were not met with 
on Jethou proper when the latest list was drawn up. 
Four lichens have been recorded for Crevichon: two by Bab- 
ington in the Hora Sarnica, armelia caperata and Physcia aquila; 
and two by Leighton on the authority of Larbalestier: Physcta 
parietina and Pannaria plumbea. ‘The latter species is No. 18 of 
Larbalestier’s Zzchenes Rarissimi, and is labelled in my copy ‘on 
rocks, Crevichon: very rare in the Channel Islands.’ 
Cakile maritima, Scop. Marquand. 
Viola Riviniana, Reich. Marquand. 
Silene maritima, With. Babington. Marquand. 
Sagina procumbens, L. Marquand. 
Ulex europaeus, L. Marquand. 
Lotus corniculatus, L. Marquand. 
L. hispidus, Desf. Marquand. 
Vicia angustifolia, Roth. Marquand. 
Rubus sp. Marquand. 
Sedum anglicum, Huds. Babington. Marquand. 
Cotyledon Umbilicus, L. Babington. Marquand. 
Conium maculatum, L.” Babington. 
Hedera Helix, L. Babington. 
Sambucus nigra, L. Babington. 
+ © OC Gen = ar 
