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A Grammatical Dictionary of Botanical Latin

 
Perigynium,-ii (s.n.II), gen. sg. perigynii, abl. sg. perigynio: “the hypogynous setae of Sedges; the flask-like calyx in which the ovary of Carex is included; also the hypogynous disk of other plants” (Lindley); “1. the hypogynous setae of sedges; 2. the flask or utricle of Carex; 3. any hypogynous disc; 4. the involucre of the female inflorescence in Bryophytes” (Jackson); “the inflated sac which incloses the ovary in Carex; sometimes used for the reduced perianth in other Cyperaceae” (Fernald 1950); “ a fleshy cup or tube that surrounds the archegonium of various bryophytes (as of the liverwort group) and that is formed either from the stem apex or from the thallus; also the saclike bract that subtends the pistillate flower of sedges of the genus Carex and that in fruit becomes a flask-shaped envelope investing the achene” (WIII); “a somewhat fleshy, tubular structure around the archegonial cluster and subsequent sporophyte, derived from axial cells peripheral to the archegonial cluster; a perigynium may or may not be associated with a shoot calyptra; e.g. the hollow perigynium of Isotachis” (Magill 1990) [> Gk. peri-, around + gynE, woman, pistil];

- Huc verisimiliter pertinet DIPLOCHAEA guianensis, Nees in Linnaea, ix. 296, nucis alis pro perigynii squamis interioribus cum fructu coalescentibus descriptis (B&H), to this place probably belongs Diplochaeta guianensis, with the wings of the nut described for the inner scales of a perigynium coalescent with the fruit.

- perigynium utriculiforme cum stylo cohaerens a Neesio in charactere emendato descriptum est nucis pericarpium (B&H), the utriculiform perigynium coherent with the style described by Nees in an amended character is the pericarpium [i.e. shell] of the nut.

NOTE: B&H used ‘utricle,’ q.v., rather than ‘perigynium’ for Carex:

- [Carex] spiculae femineae 1-florae, spicatae, ad axillas bractearum glumiformium sessiles v. breviter stipitatae, gluma única marginibus connatis utriculum saepe lageniforme (perigynmm auct. plur.) florem includens formante, ore parvo saepius 2-dentato ; rhachilla (spiculae rhachis) intra utriculum saepe ultra florem producta, setiformis v. linearis planaque, utriculum non v. vix excedens (B&H), the female spikelets 1-flowered, spicate, sessile at the axils of the glumiform bracts or shortly stalked, with the single glume with the margins fused often forming a flask-shaped utricle (the perigynium of many authors) enclosing the flower, with the small mouth more often 2-dentate; with the rhachilla (the rhachis of the spikelet) within the utricle [=perigynium] often prolonged beyond the flower, bristle-shaped or linear, and flat, not or scarcely exceeding the utricle [i.e. perigynium].

- spiculae foemineae utriculus introrsum ad medium v. fere ad basin fissus; rhachilla setiformis v. complanata utriculum non excedens (B&H), the utricle of the female spikelet toward the inside divided to the middle or almost to the base; the rhachilla bristle-shaped or complanate, not exceeding the utriculus (i.e. perigynium].

 

A work in progress, presently with preliminary A through R, and S, and with S (in part) through Z essentially completed.
Copyright © P. M. Eckel 2010-2017

 
 
 
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