in fruit. In the second group the scape is entirely naked and the flowers are more or less corymbose, all have short styles and the B. aretioides and B. siUquosa are similar to the B. Aizoon in general appearance. The plants included
5 III. Caulescentes ; scapo foliato, raceniis post anthesin elongatis, foliis radicalibus caulink diversis.
11. D. radicata, n. sp. ; incana, caule brevi lignoso subdiffuse ramoso, foliis confertis lineari-obovatis v. spathulatis obtusis, scapo gracili nudo v. unifoliato, floribus subeoryrnbosis majusculis, petalis flavis calyce pubescente duplo longioribus, siliculis erecto-patentibus ellipticis utrinque attenuatis pubenilis pedicello longioribus, stylo gracili.
Hab. Colombia; Andes of Quito, altitude 12,000 feet; Professor Jameson (n. 153).
Radix elongata, lignosa, ramosa, multiceps. Caules 1-2 unciales, versus apices foliosi. Folia - uncialia, patula, pube stellata. Scapi 1-2 unc. longi. Flores magnitudine varii. Petala sub 3 lin. longa, unguiculata; lamina patente, rotundata. Silicula — -J lin. longse ; valvis planis ; seminibus majusculis, late obovatis, atro-fuscis. 12. D. grandijlora, Hook, and Am.; incano-tomentosa, caulibus elongatis foliosis subramosis, foliis patentibus
lineari-oblongis lanceolatisve integerrimis v. obscure dentatis, scapo nudo v. folioso, floribus amplis pedicellatis, petalis albis calyce plus duplo longioribus, siliculis ellipticis pubenilis plerumque tortis utrinque attenuatis pedicello brevioribus stylo elongato terminatis, seminibus 12-20 quoque loculo. D. grandiflora, Hook, et Am. in Bot. Misc. vol. iii. p. 137. sine descript.
Var. /3; caide simpliciusculo, scapo nudo, siliculis glabriusculis subobtusatis pedicello brevioribus. D. grandiflora, Hook, et Am. ; Benth. in Plant. Hartweg. p. 159. n. 883.
Hab. Colombia ; Mr. Lobb. Chimborazo, 14,000 feet ; Professor Jameson. Var. 0, Chimborazo ; Professor Jameson, Hartweg, n. 883.
Caules 3-4 unciales. Folia uncialia, in petiolum attenuata. Flores magnit. D. violacece. Silieulce plerumque y unc. longae. D. violacea proxima sed ad hanc sectionem relata obscapum (prsecipue in var. (3), elongatum, a caule distinctum, racemumque nudiuscidum.
13. D. incana, vid. supra.
Hab. Strait of Magalhaens ; Commerson.
14. D. Gilliesii, Hook, et Arn. in Bot. Misc. vol. iv. p. 137.
Hab. Chili ; on the Andes ; Gillies, Cuming, Reynolds, Bridges.
15. D. cheiranthoides, n. sp. ; radice magna fusiforrni, foliis radicalibus longissime lineari-lanceolatis sinuato-dentatis utrinque stellatim scabemlis caulinis multo minoribus, scapo ascendente puberulo subramoso, racemo elongato, floribus amplis aureis, pedicellis fructiferis elongatis patentibus, siliculis obovato-oblongis utrinque attenuatis in stylum elongatum desinentibus, valvis convexiusculis glabriusculis, seminibus paucis majusculis atro-fuscis.
Hab. New Grenada ; Sierra Nevada, near the snow ; Purdie.
Radix pollicem crassa, 3—4 unc. longa. Folia 3-5 uncialia, vix i unc. lata, fasciculata, longe petiolata, flaccida. Rami seu scapi pedales, foliosi, divisi. Flores magnitudine et colore CheirantM ochroleuci. Pedicelli fruetiferi strict!. Siliada -j unc. longaj, pedicello -j breviores, sub lente puberidaj. Semina pro genere maxima, 2 vel 3 quoque loculo, 1 lin. longa, compressa. — Habitu ad Vesicariam utricidatam accedit, sed stamina omnia vere edentula,
silicula elliptica et semina exalata.
16. D. volcanica, Benth. ; Plant. Hartweg. p. S2. n. 571.
Hab. Colombia; Yolcan de Agua; Hartweg, n. 571.
