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A Grammatical Dictionary of Botanical Latin

 
Ocrea (also Ochrea): “a tubular membranous stipule through which the stem passes. It is formed by the consolidation of two opposite stipules” (Lindley); a tubular stipule or confluent pair of elongate stipules, often associated with Polygonum; (in Palms) an extension of the leaf sheath beyond the petiole insertion; (in mosses) the vaginula, q.v., or upper part of the vaginula; (in mosses) the ring or sheath enveloping the base of the seta, derived from the base of the archegonium and remaining after separation of the calyptra (C&A): ocrea,-ae (s.f.I), abl.sg. ocrea, nom. pl. ocreae, acc. pl. ocreas, dat. & abl. pl. ocreis [> L. a greave or legging, a protective (semi)sheath for the leg]; (in mosses) vaginula,-ae (s.f.I), abl. sg. vaginula, nom. pl. vaginulae, acc. pl. vaginulas, dat.& abl. pl. vaginulis; see colesule, epigonium, sheath, vaginula;

- ocrea cylindracea longiore usque ad prope basem capsulae extendenti differt, it differs by the ocrea cylindraceous, longer, up to near the base of the capsule extending.

- [Polygonac.] petiolo saepius basi plus minus dilatato amplexicauli, ibidemque saepe membranaceo-marginato, margine cum ocrea stipulina membranaceo-scariosa intrapetiolari caulem vaginantem continuo (B&H), with the petiole more often at the base more or less dilated, clasping the stem, and in the same place often membranaceous-margined, with the margine continuous with a stipuline ocrea, membranaceous-scarious, intrapetiolar, sheathing the stem.

- herbae suffruticesve ocrea nulla, herbs or subshrubs with o ocrea.

- ocreis variis saep fere obsoletis (B&H), with the ocreae varous, often almost undeveloped.

- ocreae scariosae, truncatae, margine saepe ciliatae (B&H), the ocreae scarious, truncate, at the margin often ciliate.

- stipulis in ocream truncatam v. obliquam v. utrinque acuminatam integram laceram v ciliatam connatis (B&H), with the stipules fused into a truncat or slanted or on both sides acuminate, entire, lacerate or ciliate ocrea.

- ocreae truncatae v. obliquae, nec scariosae (B&H), the ocreae truncate or slanted, not scarious.

- ocreis laxis, integris v. laceris, marcescentibus (B&H), with the ocreae loose, entire or lacerate, withering and persistent.

- ocreae scariosae saepe hyalinae, primum vaginantes, mox lacerae v. evanidae (B&H), the ocreae scarious, often hyaline, at first sheathing, soonlacerated or disappearing.

- ocreae variae, cylindraceae v. laxae v. laxiusculae, membranaceae v. tenues parvae et mox evanidae, the ocreae various, cylindric or loose or somewhat loose, membranaceous or thin, small and soon disappearing.

 

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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