BOTANY. 
cclxxvii 
sinubus laclniarum majorum calycis inserta iisque sesquilongiora. Stamina fauci calycis 
inserta, indefinita, 30 plura. Filamenta subulata, glabra. Anther ce ovatae, flava3, basi semi- 
bifidae, loculis parallelo-approximatis, longitudinaliter dehiscentibus. Pollen globosum, 
simplex. Ovaria indefinite nnmerosa, receptaculo subcylindraceo imbricato inserta, breve 
pedicellata, ab apice pedicellorum solubilia, hirsnta, pilis acutis strictis, monosperma, ovulo 
adscendente. Styli terminales, filiformes, subulati, glabri, stricti. Stigmata dHatata, obliqua, 
retusa, papulosa. 
Obs. This species is named in honour of Lieutenant James Ross, in whose well-preserved 
herbarium several plants were found not contained in the other collections. 
EXPLICATIO TAB. C. 
SiEVEUSiA Rossii. 1, 2. Planta florida, magnitudine naturali. Sequentes auctm. 3 et 4, 
flos antice et postice visus. 5. flos petalis et staminibus orbatus. 6. petalum. 7. portio 
calycis cum staminibus respondentibus ejusdem basi insertis. 8, 9. stamen antice et postice 
visum. 10. pollen 200-ies auctum. 11. pistillum. 12. id. longitudinaliter sectum. 13. 
pistilla receptaculo insidentia. 14. receptaculum commune pistillorum cum pedicellis. 15. 
achenimn fere matm’um. 16. id. longitudinaliter sectum. 17. id. transverse sectum. 
18. semen. 19. embryo. 
33. PoTEXTiLLA PULCHELLA, foliis piniiatis bijugis super villosis subter sericeis, foliolis 
pinnatifidis pari inferiori minore: lobis omnium lanceolato-linearibus, caulibus paucifloris 
(uniflorisve), stylo basi glanduloso-dilatata. 
Potentilla pulchella, Br. in Ross' voy. ed. 2. vol. 2. p. 193. 
Potentilla sericea.? Greville in Mem. Wern. soc. 3. p. 430. fide speciminis in herb, groen- 
landico D. Jameson. 
Obs. P. sericea Linn, facile distinguitur foliis 3 — 5-jugis, et lana elongata receptaculi, 
quod in P. pulchella pube brevi ovaria vix aequante instructum. Nostra planta affinitate 
propius accedit P. nivem, baud obstante hujus divisione ternata foliorum, qum nunc, rarissime 
quamvis, addito foliolorum pari nano similiter pinnata evadunt. 
* 
34. Potentilla nivea. Linn. sp. pi. ed. 2. p. 715. Rottb. in act. Hafn. 10. p. 451, 
t. 7. n. 22. optima fig. var. a. Willden. sp. pi. 2. p. 1109. Pers. syn. 2. jo. 56. 
Wahlenb. lapp.p. 146. Nestler potent, p. 73. Lehman potent, p. 184. 
a. folia super villosiuscula viridia, subter niveo-tomentosa. 
jS. folia utrinque villosiuscula, paginis concoloribus. 
Potentilla nivea /3. Wahlenb. lapp. p. 147. 
Potentilla Groenlandica, Br. in Ross' voy. ed. 2. vol. 2. p. 193. 
Potentilla frigida.!^ Greville in Mem. Wern. soc. 3. 430. see exempl. in herbario 
D. Jameson. 
Potentilla verna. Hooker in Scoresby's greenl. p. 413. 
2 m 2 
