472 



MEMOIRS OF THE NEW YORK BOTANICAL GARDEN [Vol. 8, No. 5 



abundant in open grasslands, herb 30-50 cm. high, leaves grey, flowers yellow, 

 a very showy species, 1890 m., July 6, 1946, 16701. North Nyasa District: Nyika 

 Plateau, in open grasslands and on edges of bogs, uncommon, perennial herb 30- 

 50 cm. high, bushy, much branched, leaves grey, flowers yellow, bracts pale 

 greenish-yellow, 2340 m., Aug. 14, 1946, 17216 (TYPUS varietatis). 



Helichrysum nitens Oliv. & Hiern in Oliv. Fl. Trop. Afr. 3: 350. 1877; Moeser, 

 Bot. Jahrb. 44: 332. 1910. 

 Zomba District: Zomba Plateau, common and conspicuous in open grasslands, 

 perennial herb 60-120 cm. high, fleshy, grey, scapes reddish under the grey in- 

 dumentum, flowers yellow, 1800 m., May 31, 1946, 16110. Mlanje District: Mlanje 

 Mountain, southwest ridge, plentiful on open grass slopes, perennial herb 40-60 

 cm. high, silvery-grey, solitary flowering stem erect from a clump of several leafy 

 rosettes, flowers yellow, showy, common down to 1870 m., but not flowering there, 

 2200 m., June 28, 1946, 16512. Tanganyika Territory and the Belgian Congo to 

 Portuguese East Africa and Angola. 



Helichrysum sulphureo-fuscum Bak. Kew Bull. 1898: 151. 1898; O. Hoffm Bot. 

 Jahrb. 30: 428. 1901; Moeser, Bot. Jahrb. 44: 332. 1910. 



North Nyasa District: Nyika Plateau, plentiful on disturbed ground in open 

 grassland, herb about 30 cm. high, flowering stems numerous, radiating and as- 

 cending, flowers yellow, bracts tipped with green, 2300 m., Aug. 14, 1946, 17224. 

 Tanganyika Territory, Nyasaland, and S. Rhodesia. 



In the past this species has been much confused with the two following, under 

 which the characters which distinguish them from H. sulphureo-fuscum are given. 

 In view of this muddle, it seems worth while enumerating here those sheets of 

 genuine H sulphureo-fuscum that I have seen (in addition to Mr. Brass* specimen 

 above). 



TANGANYIKA TERRITORY: Southern Highlands Province, Mbeya District: Mbeya 

 Mountain, in mountain grassland, herbaceous, 2290 m., June 1933, R. M. Davies Ml (Herb. 

 Kew.). Mbozi, 1520 m., June 1935, Miss H. Horsbrugh-Porter s.rz. (Herb. Mus. Brit.). 

 Njombe District: Kinga Mountains, Djilulu Mountain, in damp grass-moorland, native name 

 usumba, 2400 m., May 18, 1899, L,oetze 921 (Herb. Kew.). 



NYASALAND: North Nyasa District: Nyika Plateau, 1830-2130 m., July 1896, Whyte 

 132 (typus in Herb. Kew.). 



SOUTHERN RHODESIA: Umtali District: Mount Nuza, a subdecumbent weed on cleared 

 tree-pits, plant 20-60 cm. high, 1980 m., June 20, 1934, f/.- B. Gilliland B 431 (Herb. Mus. 

 Brit.). 



Helichrysum (§ Polylepidea) brassii Brenan, sp. nov. 



H. sulphureo-fusco Bak. affinis, foliis latioribus oblanceolatis apicem versus 

 brevius attenuatis supra glandulosis, nervis lateralibus foliorum paucioribus et 

 non parallelis, capitulis paulo minoribus differt. 



Herha 30-45 cm. alta, e basi valde ramosa ramis adscendentibus vel rarissime 

 (var y) simplex et erecta; rami usque ad capitula foliosa, graciles, basim versus 

 saepius dense albido-araneosi, superne plus minusve araneosi vel denudati et 

 turn saepe purpurei necnon tantum pilis atropurpureis brevibus patentibus plerumque 

 glandulosis satis dense instructi; internodia 0.5-2 cm. longa. Folia chartacea, 

 patentia usque suberecta, subtus densissime albido-araneosa, supra viridia tan- 

 tum saepe purpurei necnon tantum pilis atropurpureis brevibus patentibus plerumque 

 ginantia apice acuta, inferiora oblanceolata 1.5-5 cm. longa .0.3-0.8 cm. lata, 

 superiora sensim reducta et lanceolata; costa supra leviter impressa subtus satis 

 prominens, nervi laterales primarii 1-2-jugi prope folii basim orti quorum unus 

 haud procul a margine ad folii apicem percurrens, nervi laterales secundarii inter 

 costam et primarii superne tantum conspicui, omnes supra prominuli et valde ad- 

 scendentes sed haud inter se paralleli. Capitula terminalia, solitaria vel 1-5 ag- 



