ADDITIONS. 



431 



die Lt. oval, acuminate, slightly cordate at 

 base : lateral ovali-obloug, stalked. S. 6. 

 Nancy." — Gr. and G. 



p. 118, after Potentilla aurea, 



P. pyrenaica. " Stems ascending. Lts. 

 5 : terminal teeth equal. Stip. obtuse, united 

 to the leaf- stalk nearly for their whole length ! 

 M.-stalks (those of the dichotomy excepted) 

 hardly, or not at aU, longer than the diame- 

 ter of the corolla. Plant sometimes thickly 

 clothed with subadpressed hairs, sometimes 

 nearly smooth, p. 8. High valleys. Central 

 and eastern Pyrenees." — Gr. and G. 



p. 119, after Potentilla thuringiaca, 



P. delphinensis. " Stems erect. Flow- 

 ering-branches lateral, from the axils of 2 

 small L. Lts. oblong, green, covered with ad- 

 pressed hairs; terminal teeth equal. Stip. 

 lanceolate, acuminate, very long. M. erect ; 

 the stalks (those of the first dichotomy ex- 

 cepted) hardly, or not at all, longer than the 

 diameter of the corolla. Distinguished from 

 P. recta hy the lateral flowering -Iranches. 

 p. 7, 8. Mte. Viso. Lautai'et on the brink of 

 a ravine." — Gr. and G. 



p. 121, after Poteriicm polygamum, 



P. Magnolii. Fr. with large, obtuse tu- 

 bercles. Angles with thick, deeply sinuato-cre- 

 nulate crests, p. 6-8. mdt. Fr. — Gr. and G. 



p. 131, after Bosa gallica, 



R. geminata. LeCher.Lyons. — Gii.andGc. 

 Said to differ from K. gallica by its Lts. rather 

 obtuse, simply serrate at top, and not at all for 

 the lower third of their length, dull above, 

 and whitish beneath. 



R. macrantha. La Fleche. — Gr. and G. 

 Differs from the preceding by its larger size 

 and stronger prickles. The L. are acute, shi- 

 ning on the upper, and green on the lower 

 surface, somewhat cordate, and toothed on 

 their v]hole circumference. 



R. arvina. " Styles united in a downy 

 column. Fr. oval, rough with glands. Lts. 5, 

 rarely 7, dark green above, greyish white be- 

 neath, with simple, spreading, oval, glandular 

 teeth. Pet. bright pink. S. 6. La Creuse. 

 Angers." — Gr. and G. These three species 

 {if the ttoo first are anything but vaneties of 

 R. pumila) are probably hybrids between R. 

 gallica of the gardens and R. arvensis. 



p. 123, after Rosa canina, 



R. obtusifolia. Stalk of the primary 

 Germen not half as long as germen. Fr. ellip- 

 tic, urceolate. Fi'ee part of Stip. advancing. 

 Lts. 5-7, ovali-subrotund, subobtuse, pubescent 

 on both sides. PI. white. S. 6. Angers. — 

 Gr. and G. This seems distinguished from 



R. canina only by the shortness of the primary 

 stalks ; and the description leaves it doubtful 

 whether these do not lengthen in the fruit. 



p. 126, after Epilobium virgatum, 



Gr. and G. maintain that the E. virgatum 

 of Koch is erroneously named, and propose to 

 call this plant E. Lamyi. They thus distin- 

 guish the 4 allied species : — 



E. palustre. Stem without raised lines. 

 Fl.-buds nodding. Runners long and slender. 



E. virgatum. Stem vrith 2 or 4 raised 

 lines. Fl.-buds erect. Runners long and slen- 

 der, with widely scattered leaves. 



S. tetragonum. Stem with 4 raised lines. 

 Middle L. sessile, somewhat decurrent. Ro- 

 settes of L. in place of runners. 



S. Iiamyi. Like tetragonum, but with a 

 deom-rent haft to the L. 



p. 126, after Epilobium alsinifolium, 



Ea. Duri^i. Differs from E. alsinifolium 

 in having the stigmas spreading in form of a 

 cross. These two and E. alpinum have sub- 

 terraneous scaly runners. — Gr. and G. 



p. 128, after the note on Tamarix gallica, 

 Gr. and G. admit 3 species of Tamarix : — 

 T. gallica, where the hypogynous disc 

 has 10 obtuse angles, the Stamens inserted in 

 the intermediate sinus, and the Caps, pyrami- 

 dal, tapering ft'om the base to the summit. 



T. anglica, where the hypogynous disc 

 has 5 acute angles, on which the Stamens are 

 inserted, and the Caps, is ovoid, 3-edged, ab- 

 ruptly contracted above. This grows on the 

 French coast from Bayonne to Dunkirk. In 

 both these the Anthers are apiculate. 



T. a&icana has anthers without an apicu- 

 lus, the Disc as in T. anglica, and a short, 

 ovoid, 3-edged Fr. slightly attenuate at top. 



p. 129, after Montia font ana, 



M. rivularis. Cymes aiising from a knot, 

 producing 2 equal, opposite L. p. 7-9. Rills 

 on granitic. In fontana the terminal cymes 

 have a scariose bract opposed to a L. — Gr. ^ G. 



p. 130, after Herniaria incana, 



H. latifolia. Styles erect, parallel, p. 

 7, 8. c. Pyr. hi all the other species the 

 styles diverge. In glabra and hirsuta the Ft. 

 are sessile; in incana, latifolia, and alpina, they 

 are stalked ; all the species are perennial, and 

 the three last-mentioned somewhat woody. — 

 Gr. and G. 



p. 137, after Saxifraga media, 



S. luteo-purpurea and S. ambigua 



seem to be hybrids between S. media and 5. 

 aretioides. — Gr. and G. 



