65 



THREE APPAKENTLY UND ESCRIBED IRISH 

 SAXIFRAGES. 



Br THE Rev, E. S. Marshall, M.A., F.L.S. 



1. Saxifraga Drucei, mihi, n. sp. — Planta delicatula, villosissima, 

 pallide virklis (suepius viridi-lutescens), densissime vel plus minus laxe 

 Ciespitosa. Surculi prostrati, graciles, subuiiciales, cultura interdum 

 biunciales. Folia, pi'iesertim in marginibus, pilis albis crispulis arti- 

 culatis luultis hyalinis tecta ; surculorum tritida, inferiora longius 

 petiolata, laciniis lineaiibus lineari-lanceolatisve, acutis aut apieulatis : 

 rosulai-uin numerosa, eonferta, surculini.s siniilia, at nonnumquaiu 

 obtusiuscula ; caulina 2-4, distantia, inferiora triflda (\-arissime 

 quinquefida), subsessilia, laciniis suberectis linearibus acutis vel cal- 

 loso-apiculatis, intermedia 2-3-partita (ali(juando indivisa), superiora 

 simplicia, linearia vel anguste laneeolata. Caules 2-4-unciales (in 

 planta culta staturam 6-7-uncialem attingere possunt), graciles, 

 albo-pubescentes, intermixtis (prajcipue apicem versus) pilis glandu- 

 losis. Flores 2-4 (in horto 2-(3), pro majori parte terminales, bi-eviter 

 pedicellati, at in exemplis tloribundis prope basin vel ad medium 

 caulis oriundi, longius (usque ad sesquiunciam) pedicellati, atque 

 1-2 bracteis linearibus 2:)raiditi. Calyces late campanulati, lobis 

 triangularibus acutis aut apieulatis, superne corneo-marginatis, glan- 

 dulosi, pilosiusculi, demum glabrescentes. Petala Candida, 8- 

 (rarius 5-) venosa, calyce triplo longiora, obovata, integerrima, apice 

 rotundata. Antherae mediocres, siccitate oblongJB vel ovato-oblongie. 

 Capsulse cornua gracilia, fructifera divergentia. 



Plant ratber delicate, very villous, pale green (frequently yel- 

 lovvisb-green), very densely, or more or less loosely tufted. Barren 

 shoots prostrate, slender, about an inch long, sometimes two inches, 

 in cultivation. Leaves, especially on their edges, covered with many 

 white, rather curly, jointed, glass-like hairs ; those of the barren 

 shoots trifid, the lower rather long-petioled, with linear or linear- 

 lanceolate, acute or apiculate segments : those of the rosettes nmne- 

 rous, crowded, similar to those of the barren shoots, but occasionally 

 bluntish ; stem-leaves 2 to 4, distant, the lower ones trifid (very 

 rarely 5-fid), subsessile, with suberect, linear, acute or callose-apicu- 

 late segments, the intermediate ones 2-3-partite (sometimes un- 

 divided), the upper ones simple, linear, or narrowly lanceolate. Stems 

 2 to 4 inches (they can reach a height of 6 or 7 inches, in the culti- 

 vated plant), slender, white-hairy, with an admixture (especially 

 towards the top) of glandular hairs. Flowers 2 to 4 (2 to 6, in the 

 garden), mostly terminal, shortly pedicelled, but in raany-ilowered 

 specimens springing from near the base or about the middle, with 

 longer pediccds (up to an inch and a half), furnished with 1 or 2 

 linear bracts. Calyces broadly campanulate, with triangular, acute 

 or apiculate lobes, which are horny-bordered upwards, glandular, 

 somewhat pilose, at length glabrescent. Petals pure white, 8- (more 

 rarely 5-) veined, thrice as long as the calyx, obovate, quite entire, 

 rounded at the tip. Anthers medium-sized, oblong or ovate-oblong, 

 when dry. Horns of capsule slender, divergent in fruit. 

 JouKNAL OF Botany. — Vol. 56. [March, 1918.] f 



