TWO NEW SCOTTISH HAWKWEEDS 119 



[4. A. MINUS X TOMENTOSUM, COHlb. IIOV. 



L. Bitschliana Ascherson, Ber. Deut. Bot. Ges. ix. 99 (1891). 

 L. glabra x tomentosa Aschers. & Graebn. Fl. Nord. Flachl. 



744 (1899).] 

 5. A. minus x vulgare, comb. nov. 



L. maasii M. Schultze, B. V. Thiir. ii. 214 (1884). 



L. nemorosa x glabra Aschers. & Graebn. Fl. Nord. Flachl. 



743 (1899). 



TWO NEW SCOTTISH HAWKWEEDS. 

 By the Eev. E. S. Marshall, M.A., F.L.S. 



Hieracium Isabella^ n. sp. — Planta 2-5 decim.alta. Caulis 

 subflexuosus, pilis sparsis longioribus gracillimis albidis praeditus ; 

 superne flocculosus ac saepe glandulosus. Folia tenuiora, flaccida, 

 in apricis brunneo-purpurascentia, ciliata, in margine hinc inde 

 micro-glandulifera, utrinque plus minus albido-pilosa ; radicalia 

 3-4, in petiolum subalatum laminam (exceptis primariis) saepe 

 a3quantem cuneato-attenuata, ambitu lanceolata, vel in exemplis 

 robustis ovali-lanceolata, apicem versus integerrima, acuta aut 

 mucronata, utrinque dentibus subtriangularibus (in primariis 

 grossis) 3, rarius 4-6, mucronatis instructa; caulinum solitarium, 

 in speciminibus parvis aliquando 0, vel bracteae simile, lanceo- 

 latum lineari-lanceolatumve ; petiolum late alatum ; lamina ad 

 apicem integram acutissimam atque ad basin sensim attenuata. 

 Bractece anguste lineares, acutae. Pedunculi recti, rarius curvuli, 

 dense flocculosi glandulosique. Gapitula 1-3, rarius 4-5, mediocria 

 vel majuscula, basi cuneata, serius paullulum rotundata. Phyllaria 

 linearia, pilis albidis crispulis eglandulosis, glanduliferisque rectis 

 inaequalibus (nonnunquam perpaucis), flocculoque, praecipue basin 

 versus, induta ; exteriora obtusiuscula, subsenescentia ; interiora 

 glabrescentia, acuta, margine vel tota hyalina. Ligula aureag, 

 phyllariis interioribus subduplo longiores, apice glaberrimae. Styli 

 e livido nigrescentes. Achenia nigro-castanea. Pappus sordide 

 albus. 



Plant 2 to 5 decimetres high. Stem usually flexuose, with 

 scattered, rather long, very slender, whitish hairs ; flocculose and 

 often glandular, above. Leaves thinnish, flaccid, purplish-brown 

 in exposure, ciliate, with occasional small glands on the margin, 

 more or less whitish-pilose on both sides ; radical 3 to 4, narrowed 

 like a wedge into the somewhat winged petiole, which often 

 (except in the primary ones) equals the blade, lanceolate, or in 

 strong examples oval-lanceolate in outline, quite entire towards 

 the point, acute or mucronate, with 3, more rarely 4 to 6 pairs of 

 subtriangular, mucronate teeth (coarse, in the primary ones); 

 cauline solitary, sometimes absent or bractlike, in small speci- 

 mens, lanceolate or linear-lanceolate ; petiole broadly winged ; 

 blade narrowed to the entire, very acute point and the base. 

 Bracts narrow-linear, acute. Peduncles straight (rarely a little 

 curved), densely flocculose and glandular. Heads 1 to 3, more 



