64 



THE NATURALIST. 



2. C. MONOGYNA. 



C. spinosa, foliis basi cum petiolis subtusque in nervis subciliatis, 

 floribus corymbosis (plerumque) monogynis, stylo recto, calycibus glabris 

 vel subciliatis, laciniis oblongis acuminatis, reflexis apice obtusis, fructi- 

 bus globosis, nuclea 1-2 oblongo-ovata, brunnea, dorso convexa 2 sulcata, 

 sulcis infra medium evanescentibus, facie obversa planiuscula longitudi- 

 naliter sulcata, basin versus umbilicata, includentibus. 



3. C. OXYACANTHA. 



C. spinosa, foliis nervo medio basique cum petiolis pubescentibus, 

 floribus corymbosis 2-3-gynis, stylis erectiusculis, calycibus glabris, 

 laciniis plano-expansus acuminatus, acutiusculis, fructibus subglobosis, 

 nuclea 3, ovata pallide fusca, dorso convexa 2-sulcata, sulcis infra medium 

 evanescentibus, facie obversa exeavata-planiuscula, strige longitudinali 

 angulato-prominula forentibus." (s) 



Eeicbenbach. (Fl. Excurs. 629) describes, G. apiifolia (Medicus sub 

 Mespilo) " quasi hybrida inter oxyacanthoides-monogyna est, glabra, 

 foliis profunde S-5. partitus, floribus magnis illius monogynis tamen 

 sequentes." 



The above with tbe descriptions, &c., named in my previous article 

 comprise almost the whole of the literature relating to our English species 

 that I have been able to obtain. Stendel's book is a mere list of names, 

 Koch only refers briefly to Eingerbrush's paper. One thing however, 

 appears clear, viz., that there is considerable confusion connected both 

 With the nomenclature and synonymy of the various forms. This seems 

 to arise partly from some authors clinging to the Linnean axiom of con- 

 fining their diagnosis within a limited number of words, thus necessitating 



(3.) — 0. Kyrtostyla. Spinous, leaves glabrous on:botli sides, or ciliate on the nerves 

 beneath, flowers corymbose, monogynous, style deflexed, calyx hairy, sepals oblong 

 acuminate patent apex obtuse, fruit oblong honey-combed at the base, nut one, ovate- 

 oblong, reddish brown, back convex 3-4 furrowed, obverse face longitudinally cleft, 

 umbilicate below the middle. 



G. monogyna. Spinous, leaves sub-ciliate at the base, on the nerves beneath, and 

 on the petioles, flowers corymbose (for the most part) monogynous, style straight, calyx 

 glabrous or subciliated, sepals oblong acuminate reflexed, apex obtuse, fruit globose, nuts 

 1-2, oblong-ovate, brown, convex on the back two-furrowed, furrows vanishing below 

 the middle, opposite side flattish longitudinally furrowed, umbilicate towards the base. 



C. oxyacantha. Spinous, leaves hairy at the base, on the midrib and also the petiole, 

 flowers corymbose 2-3-gynous, style almost erect, calyx glabrous, sepals flat spreading, 

 acuminate somewhat acute, fruit sub -globose, nuts 3 ovate pale brown, convex at the 

 back and 2 furrowed, furrows vanishing below the middle, obverse, face concave flattened- 

 with prominently angular longitudinal strise. 



