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5 mm. longa с : а 3,5 — 4 mm. lata 5 — 7 nervia tenuia viridia 

 umbellulas florentes manifeste superantia; flores in umbellula 

 с : a 15 minimi petalis obtriangularibus nervo impresso, stylopodio 

 lato flavo stylis brevissimis, pedicellis capillaribus ovaria usque 

 7 plo superantibus. Umbellae laterales minores. Ovaria post anthe- 

 sin jugis valde prominentibus, alatis? valleculis 3-vittatis. 4. — Folia 

 late viridia, caulis flavescentivirens. 



Perhaps the most important points for distinguishing the plants 

 of this species are: a) habitus is intermediate between B. Can- 

 dollei, Wall, and B. longiradiatum, Turcz. a, b) leaves 

 ofB. longiradiatum but evidently narrower, c) nervation di- 

 stinctly reticulating of B. Candollei and B. longifolium, L. 

 but camptodrome, no dictyodrome, and without marginal nerves: 

 transversal anastomoses also none, d) umbels and umbelluls of 

 B. longiradiatum, var. a, but bracts and bractlets of B. 1 о n - 

 gifolium, e) fruits and petals of B. longifolium. 



In order that every one may have a clear conception of this 

 interesting plant and of the degree of its relationship to other 

 species I permit myself to point out 'the differences between this 

 plant and its allied: B, Candollei, Wall., B. jucundum, 

 Kurz, В. longifolium, L. [incl. B. aureum, Fisch.!] and 

 B. longiradiatum, Turcz. 



The distinguishing features of these species are follow: 



B. Candollei, Wall.! Stem branched, leaves with very pro- 

 minent (camptodrome) primary nervs and the very thick marginal 

 ones; basal leaves narrower, middle ones never lyroide, upper ones 

 rotounded at the base. Bracts and bractlets small with 1 — 3 nerves, 

 pedicels short, tliik, but involucels shorter as flowering umbelluls. 



B. jucundum. Kurz. [Clarke!] Stem hard branched up- 

 Avards, basal leaves obovate or orbicular, all ones very prominent 

 (camptodrome), evidently connecting with the very thick marginal 

 ones. Rays stout angular. Bracts and bractlets small acute, mostly 

 lanceolate, each with 1 — 3 nerves; pedicels short about half as long 

 as the carpels, involucels shorter as flowering umbelluls. 



B. longifolium, L.! Stem branched upwards. Basal leaves 

 very large ovate or orbicular, all ones subpenninerved; primary 

 nerves dictyodrome, very reticulating (marginal ones none). 



B. longiradiatum, Turcz.! Stem very branched upwards. 



5* 



