lli/ljericitm.'] XXI. hyi'i;hu:in k.k (olivkk). 155 



A large genus, widely spread in the uorlherii tenipfrate zone and fn-qm-nt in the i 

 niountaiu ranges of intertropical countriis. Of the tropical African species, 5 appear to be 

 peculiar to Abyssinia. It is not improbable that future gatherings may render it necessdry 

 to reduce sorae of the following as forms of variable species. 



Procumbent wiry herb. Leaves elliptical, \ in. Flowers solitary 



with leafy sepals. Styles 5 1. H. prplidifolium. 



Cffispitose herb of 1-2 ft. Leaves 1-1^ iu., puberulous. Styles 3 2. //. intunnedium. 

 Ca'spitose herb of 2-10 in. Leaves \-^ in., glabrous. Styles 3 . 3. II. Lil.nirlii. 

 Shrubs or arborescent. Flowers large. 



Flowers solitary. Leaves oval, ^-1 in. Sepals ^^ in. . . . 4. H. lanrculatnm. 

 Flowers in few- or mauy-tlowered cymes. 



Styles united throughout ; stigma capitate. Leaves oblong- 

 elliptical, 1-3 in. Sepals \-\ in 5. //. QiiarCmiunuin. 



Styles united nearly to the 5-tid apex. Leaves oblong-ellip- 

 tical, narrowed to the base, \\-i in. Sepals x^-^y in. . . 6. H . Schiinperi. 

 Styles 5, united three-quarters or more. Leaves oval-lanceo- 

 late, 1-1 2" in. Sepals i--^ in 7- II. f/iiidiafolium. 



Styles 3, divaricate. Leaves oblong, obtuse, apiculate, gla- 

 brous. Virgate undershrub 8. //. chrysodictum . 



1. H. peplidifolium. Rich. 11. Abyss, i. 95. A procumbent, glabrous, 

 wiry herb, with elongate terete branches. Leaves small, subscssile or very 

 shoftly petioled, elliptical, obtuse, entire at the base, punctate, paler and glau- 

 cous beneath, \ in. long or less, ^ in. broad. Piowers small, terminal, soli- 

 tary, on short pedicels {^-^ in. or Jess), with unequal foliaceous sepals ; 

 the outer ovate obtuse, inner narrower, with intramargiual dots. Styles 5, 

 free from the base. 



Nile Land. Abyssinia, Schimpei' ! Dillon and Petit ! 



2. H. intermedium, Sleitd. ; Rich. Fl. Abyss, i. 95. Herb of 1-2 ft., 

 with erect, csespitosc, puberulous or glabrate, terete stems, from a woody or 

 wiry stock. Leaves ovate-lanceolate or oblong-elliptical, obtuse or the upper 

 rather acute, sessile, with a slightly cordate, clasping, more or less rouiuled 

 base, puberulous on both sides or glabrous above, with numerous transluci'iit 

 dots, 1-1-| in. long, \-\ in. broad. Flowers numerous, in terminal panicu- 

 late cymes, less than 1 in. diam. Sepals linear-lanceolate, nearly \ in., with 

 proihiuent, marginal, blnck-tippcd glands. Styles 3, free from the base, as 

 long or longer than the ovary. Seeds oblong- or cylindric-clavate terete. — 

 //. aiumarium^ Boiss. Diag. Scr. i. 8. 114. //. gracile, Boiss. Diag. Ser. 2. 

 V. 70. 



Nile Iiand. Abyssinia, Schimper ! Roth ! Dillon ! 



I have no hesitation in identifying with H. intei^mediinn the plants of Asia Minor de- 

 scribed by Boissier under the names above quoted. It is nearly allied to //. lanuffinosum, 

 Lam., as well as to the Indiau H. adenophorum. 



3. H. Lalandii, Chois. ; DC. Prod. i. 550. A more or less tufted 

 glabrous herb of 2 or 3 to 8 in. ; flowering branches erect or decund)ent be- 

 low, slender, angular, leafy. Leaves lanceolate- or linear-oblong, rather ob- 

 tuse or acute, ascending'or appressed, 1 -nerved, glandular-dotted, 3 -4 lines 

 long. Flowers in dichotomous cymes ; sepals lanceolate, entire. Styles 3, 

 distinct. 



