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Published In: Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie 40: 276. 1908. (Bot. Jahrb. Syst.) Name publication detailView in BotanicusView in Biodiversity Heritage Library

Project Name Data (Last Modified On 7/20/2009)

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ENGLEROCHARIS Muschler, Bot. Jahrb. Syst. 40: 276. 1908.

Ihsan A. Al-Shehbaz


Name derivation: for Heinrich Gustav Adolf Engler (25 March 1844-10 October 1930), German botanist famous for his classification system of plants and for expertise in phytogeography; Greek charis, charm or grace, used here to honor the person.

Type species: E. peruviana Muschler

     Herbs perennial, scapose, cespitose, cushion forming, with thick, simple or branched caudex desnsely covered with persistent, expanded petiolar bases of previous years. Trichomes simple, soft sericeous. Multicellular glands absent. Stems absent. Basal leaves rosulate, petiolate, not fleshy, simple, entire, densely sericeous, rarely glabrous or ciliate; cauline leaves absent. Racemes few- to many-flowered, lax or dense, ebaracteate or basally bracteate, subumbellate, slightly or not elongated in fruit; rachis straight; fruiting pedicels ascending, persistent, slender or thickened, distinct or obsolete. Sepals oblong, oblong-ovate, or oblong-spatulate, free, green and foliaceous, persistent, erect, glabrous or pubescent, equal, base of inner pair not saccate. Petals white, erect at base with flaring blade, longer than sepals; blade obovate, apex rounded; claw undifferentiated from blade. Stamens 6, slightly exserted, erect, slightly tetradynamous; filaments filiform, wingless, unappendaged, not dilated at base, glabrous, free; anthers oblong, not or apiculate at apex. Nectar glands 1, confluent and subtending bases of all stamens, median nectaries present, lateral nectaries semiannular. Ovules 8-16 per ovary; placentation parietal. Fruit dehiscent, capsular siliques, oblong to oblong-elliptic, terete, not inflated, sessile, unsegmented; valves papery, with an obscure midvein, glabrous or puberulent, not keeled, smooth, wingless, unappendaged; gynophore absent; replum rounded, visible; septum complete, membranous, tanslusent, veinless; style distinct and to 2 mm, cylindric, persistent, glabrous; stigma capitate, entire. Seeds subbiseriate, wingless, ovoid, plump, on filiform funicles; seed coat smooth, not mucilaginous when wetted; cotyledons incumbent, entire.

Two species: Bolivia, Peru.

Reference: Al-Shehbaz (1989a).



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                                 Key to the species of Englerocharis

1. Leaves lancolate, glabrous or only adaxially sericeous, 2-3 mm wide; sepals glabrous,

     1.8-2.2 mm long; ovary glabrous; raceme ebracteate, lax, 2-4-flowered; filaments

     to ca. 2 mm ..........................................................................................................  1. E. pauciflora

1. Leaves oblanceolate to ovate, densely sericeous on both surfaces, 5-8 mm wide; sepals

     pubescent or rarely glabrous, (3-)4-6 mm long; ovaries usually puberulent; raceme

     bracteate basally, dense, 8-20-flowered; filaments 4 -4.5 mm ................................ 2. E. peruviana

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